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Future House 13

The central Texas countryside contains many toads that come out at night. For every green toad, there are 25 brown toads, and one-quarter of the brown toads are spotted. If there are 50 spotted brown toads per acre, how many green toads are there per acre?

If there are 50 spotted brown toads per acre, and this represents one-quarter of the brown toads, then there are 50*4=<<TOOL:calculator50*4TOOL>><<OBS200OBS>>200 brown toads per acre. If for every 25 brown toads there is one green toad, then there are 200/25=<<TOOL:calculator200/25TOOL>><<OBS8OBS>>8 green toads per acre. <<TOOL:check_answer8TOOL>><<OBSTrueOBS>>

train_1200

Bruce's aunt gave him $71 to spend on clothes at the mall. He bought 5 shirts that cost $5 each and a pair of pants that cost $26. How much money does Bruce have left to buy more clothes?

Bruce spent 5 * $5 on shirts = $<<TOOL:calculator5*5TOOL>><<OBS25OBS>>25. Including the pants, Bruce spent $25 + $26 = $<<TOOL:calculator25+26TOOL>><<OBS51OBS>>51. Since he began with $71, he has $71 - $51 spent = $<<TOOL:calculator71-51TOOL>><<OBS20OBS>>20 remaining. <<TOOL:check_answer20TOOL>><<OBSTrueOBS>>

train_1201

Will and Henry go fishing in a river. Will catches 16 catfish and 10 eels. Henry challenges himself to catch 3 trout for every catfish Will catches. Due to environmental concerns, Henry decides to return half his catch after meeting his own challenge. How many fishes do they have altogether now?

Will caught 16+10=<<TOOL:calculator16+10TOOL>><<OBS26OBS>>26 fishes Henry caught 3 trout for each catfish Will caught so since Will caught 16 catfish, Henry caught 16*3 =<<TOOL:calculator3*16TOOL>><<OBS48OBS>>48 trout Half of 48 trout is (1/2)*48 = 24 Henry returned 24 trout leaving him with 48-24 =<<TOOL:calculator48-24TOOL>><<OBS24OBS>>24 trout They now have a total of 26+24 =<<TOOL:calculator26+24TOOL>><<OBS50OBS>>50 fishes <<TOOL:check_answer50TOOL>><<OBSTrueOBS>>

train_1202

A tomato plant has 100 tomatoes. Jane picks 1/4 of that number for use in their house. After a week, she goes back and picks 20 more tomatoes, and the following week picks twice that number. What's the total number of fruits remaining on the tomato plant?

When she picks 1/4 of the number of tomatoes, she goes home with 1/4*100 =<<TOOL:calculator1/4*100TOOL>><<OBS25OBS>>25 tomatoes. The total number of tomatoes remaining will be 100-25 =<<TOOL:calculator100-25TOOL>><<OBS75OBS>>75 tomatoes. After picking 20 more tomatoes the following week, the number of tomatoes remaining is 75-20 =<<TOOL:calculator75-20TOOL>><<OBS55OBS>>55 tomatoes. The next week she picks twice the number she picked the previous week, that is 20*2 =<<TOOL:calculator20*2TOOL>><<OBS40OBS>>40 tomatoes. The total number of tomatoes remaining after the final picking is 55-40 =<<TOOL:calculator55-40TOOL>><<OBS15OBS>>15 tomatoes. <<TOOL:check_answer15TOOL>><<OBSTrueOBS>>

train_1203

Jason sent 220 text messages on Monday, half as many text messages on Tuesday, and 50 text messages each day Wednesday through Friday. How many text messages did he send on average during those five days?

First find how many text messages he sent on Tuesday: 220 messages / 2 =<<TOOL:calculator220/2TOOL>><<OBS110OBS>>110 messages Then find how many text messages he sent Wednesday-Friday: 50 messages/day * 3 days =<<TOOL:calculator50*3TOOL>><<OBS150OBS>>150 messages Then add up all the messages he sent to find the total: 110 messages + 150 messages + 220 messages =<<TOOL:calculator110+150+220TOOL>><<OBS480OBS>>480 messages Then divide that number by the number of days to find the average number of messages he sent per day: 480 messages / 5 days =<<TOOL:calculator480/5TOOL>><<OBS96OBS>>96 messages/day <<TOOL:check_answer96TOOL>><<OBSTrueOBS>>

train_1204

Ben's new car cost twice as much as his old car. He sold his old car for $1800 and used that to pay off some of the cost of his new car. He still owes another $2000 on his new car. How much did his old car cost, in dollars?

His new car costs 1800+2000=<<TOOL:calculator1800+2000TOOL>><<OBS3800OBS>>3800 dollars. His old car cost 3800/2=<<TOOL:calculator3800/2TOOL>><<OBS1900OBS>>1900 dollars. <<TOOL:check_answer1900TOOL>><<OBSTrueOBS>>

train_1205

The tank of John's car is full: it contains 47 liters of gasoline. After a journey of 275 km, there are 14 liters left. What is the fuel consumption of this car per 100 km?

The car consumed 47 liters - 14 liters =<<TOOL:calculator47-14TOOL>><<OBS33OBS>>33 liters of gasoline for 275 km. Let x be the fuel consumption per 100 km. We can write the proportion: 33/275 = x/100 The cross product gives: 275 x = 33 * 100 So the car consumes x = 3300/275 =<<TOOL:calculator3300/275TOOL>><<OBS12OBS>>12 liters per 100 km. <<TOOL:check_answer12TOOL>><<OBSTrueOBS>>

train_1206

If there are 8 slices in a large pizza, how many slices will remain if Mary orders 2 large pizzas and eats 7 slices?

The number of total slices of pizza is 8 slices per pizza * 2 large pizzas =<<TOOL:calculator8*2TOOL>><<OBS16OBS>>16 slices If Mary eats 7 slices, then 16 - 7 =<<TOOL:calculator16-7TOOL>><<OBS9OBS>>9 remain <<TOOL:check_answer9TOOL>><<OBSTrueOBS>>

train_1207

Thomas wants to throw a party for his best friend Casey. He needs to order enough chairs for all the party guests to sit in, one for each guest. First he orders 3 dozen chairs for 3 dozen guests he invites. Then he finds out that 1/3 of the guests want to bring a guest of their own, so Thomas needs to order more chairs. Eventually, Thomas finds out that 5 of the guests he originally invited can't make it. Thomas would also like to order 12 extra chairs just in case they need them. How many chairs is Thomas going to order for Casey's party?

Thomas originally orders chairs for 3 dozen guests, 12 x 3 = 36 guests Thomas finds out that 1/3 of the guests want to bring a guest of their own, 1/3 of 36 =<<TOOL:calculator1/3*36TOOL>><<OBS12OBS>>12 The 12 guests bring a guest of their own each, 36 guests + 12 guests =<<TOOL:calculator36+12TOOL>><<OBS48OBS>>48 Thomas finds out that 20 of the guests can't make it, 48 guests - 5 guests = 43 Thomas wants to order an extra 12 chairs, 43 + 12 =<<TOOL:calculator43+12TOOL>><<OBS55OBS>>55 Thomas will need 55 chairs for the party. <<TOOL:check_answer55TOOL>><<OBSTrueOBS>>

train_1208

Lily goes to the supermarket. She has $60. She needs to buy 6 items: celery, cereal, bread, milk, potatoes, and coffee. She finds a stalk of celery for $5, cereal for 50% off $12, bread for $8, and milk for 10% off $10. She finds potatoes for $1 each and buys 6. How many dollars does she have left to spend on coffee?

Lily spends $5+$8=$<<TOOL:calculator5+8TOOL>><<OBS13OBS>>13 on celery and bread. Lily spends $12*(50/100)=$<<TOOL:calculator12*(50/100)TOOL>><<OBS6OBS>>6 on cereal. Lily gets 10% off the milk, so she pays 100% - 10% = 90% of its original price. Lily spends $10*90%=$<<TOOL:calculator10*90*.01TOOL>><<OBS9OBS>>9 on milk. She spends $1*6=$<<TOOL:calculator1*6TOOL>><<OBS6OBS>>6 on potatoes. Thus, she has $60-$13-$6-$9-$6=$<<TOOL:calculator60-13-6-9-6TOOL>><<OBS26OBS>>26 left over for coffee. <<TOOL:check_answer26TOOL>><<OBSTrueOBS>>

train_1209

Jeff committed to run for an hour a day during weekdays. On Thursday, he cut short his run by 20 minutes but was able to jog 10 minutes more on Friday. How many minutes was he able to run for that week?

Jeff was able to run a total of 60 x 3 =<<TOOL:calculator60*3TOOL>><<OBS180OBS>>180 minutes from Monday to Wednesday. On Thursday, Jeff ran for 60 - 20 =<<TOOL:calculator60-20TOOL>><<OBS40OBS>>40 minutes only. On Friday, he ran for 60 + 10 =<<TOOL:calculator60+10TOOL>><<OBS70OBS>>70 minutes. Therefore, Jeff ran a total of 180 + 40 + 70 =<<TOOL:calculator180+40+70TOOL>><<OBS290OBS>>290 minutes. <<TOOL:check_answer290TOOL>><<OBSTrueOBS>>

train_1210

Paula wants to ride the go-karts 1 time and the bumper cars 4 times. It costs 4 tickets to ride the go-karts and 5 tickets to ride the bumper cars. How many tickets does Paula need?

Paula wants to go on the go-kart 1 time and the bumper cars 4 times. The number of tickets needed for the go-karts is 1 × 4 =<<TOOL:calculator1*4TOOL>><<OBS4OBS>>4. The number of tickets needed for the bumper cars is 4 × 5 =<<TOOL:calculator4*5TOOL>><<OBS20OBS>>20. Paula needs 4 + 20 =<<TOOL:calculator4+20TOOL>><<OBS24OBS>>24 tickets. <<TOOL:check_answer24TOOL>><<OBSTrueOBS>>

train_1211

Kyle makes $3200.00 every month. His monthly bills include $1250 for rent, $150 on utilities, $400 into retirement & savings accounts, $300.00 on groceries/eating out, $200 for insurance and $200 for miscellaneous expenses. If he’s looking at buying a car with a monthly car payment of $350 how much does that leave for gas and maintenance?

Kyle’s monthly bills are 1250+150+400+300+200+200 = $<<TOOL:calculator1250+150+400+300+200+200TOOL>><<OBS2500.00OBS>>2,500.00 He makes $3200 and his bills are $2500 so that leaves 3200-2500 = $<<TOOL:calculator3200-2500TOOL>><<OBS700.00OBS>>700.00 If he buys a car with a monthly car payment of $350 then that leaves 700-350 = $350.00 left over for gas and maintenance <<TOOL:check_answer350TOOL>><<OBSTrueOBS>>

train_1212

A state fair charges $5 for a ticket. Two-thirds of the people who buy a ticket will buy deep-fried fair food for $8, one quarter will go on a ride for $4, and one eighth will spend $15 on a souvenir. The fair made $2520 from tickets. How many dollars did they make in all?

The fair made $2520 from tickets, so they had 2520 / 5 =<<TOOL:calculator2520/5TOOL>><<OBS504OBS>>504 people attend the fair. Two-thirds of those people will buy food, so 504 * 2 / 3 =<<TOOL:calculator504*2/3TOOL>><<OBS336OBS>>336 people will buy food. The fair will make 336 * 8 = $<<TOOL:calculator336*8TOOL>><<OBS2688OBS>>2688 from food. A quarter of the people will go on a ride, so 504 / 4 =<<TOOL:calculator504/4TOOL>><<OBS126OBS>>126 people will go on a ride. The fair will make 126 * 4 = $<<TOOL:calculator126*4TOOL>><<OBS504OBS>>504 from rides. An eighth of the people will buy a souvenir, so 504 / 8 =<<TOOL:calculator504/8TOOL>><<OBS63OBS>>63 people will buy souvenirs. The fair will make 63 * 15 = $<<TOOL:calculator63*15TOOL>><<OBS945OBS>>945 from souvenirs. In all, the fair will make 2520 + 2688 + 504 + 945 = $<<TOOL:calculator2520+2688+504+945TOOL>><<OBS6657OBS>>6657. <<TOOL:check_answer6657TOOL>><<OBSTrueOBS>>

train_1213

It takes a duck 40 days to fly to the south during winter, twice as much time to fly to the north during summer, and 60 days to travel to the East during spring. How many days is the duck flying during these seasons?

If the duck takes 40 days to fly to the south during winter and twice as much time to fly to the north during summer, it takes 40*2=<<TOOL:calculator40*2TOOL>><<OBS80OBS>>80 days to travel to the north. The total time it takes to travel to the south and the north during both seasons is 80+40 =<<TOOL:calculator80+40TOOL>><<OBS120OBS>>120 days. The duck also takes 60 days to travel to the East during spring, making the total time it travels during all the seasons to be 120+60 =<<TOOL:calculator120+60TOOL>><<OBS180OBS>>180 <<TOOL:check_answer180TOOL>><<OBSTrueOBS>>

train_1214

Vincent’s washer broke so he had to go to the laundromat. On Wednesday he washed six loads of clothes. The next day he had time to wash double the number of loads he did the day before. On Friday he had a test and could only manage half of the loads he did on Thursday. On Saturday the laundromat closed at noon and he could only wash a third of the loads of laundry he did on Wednesday. How many loads of laundry had he washed that week?

On Thursday he washed 6*2=<<TOOL:calculator6*2TOOL>><<OBS12OBS>>12 loads of laundry On Friday he washed 12/2=<<TOOL:calculator12/2TOOL>><<OBS6OBS>>6 loads of laundry On Saturday he washed 6/3=<<TOOL:calculator6/3TOOL>><<OBS2OBS>>2 loads of laundry In total he washed 6+12+6+2=<<TOOL:calculator6+12+6+2TOOL>><<OBS26OBS>>26 loads of laundry <<TOOL:check_answer26TOOL>><<OBSTrueOBS>>

train_1215

Yuan is 7 years older than his brother David and twice his age. How old is David?

Let x be David's age. Yuan is seven years older than David, 7 + x = Y years. Yuan is also twice David's age, 2 * x = Y years. Since these two equations equal the same thing, we can write: 7 + x = 2 * x. Subtracting x from both sides we get 7 = x, so David is 7 years old. <<TOOL:check_answer7TOOL>><<OBSTrueOBS>>

train_1216

Alvin owns coconut trees that yield 5 coconuts each. If a coconut can be sold for $3 and Alvin needs $90, how many coconut trees does he have to harvest?

Alvin needs to harvest 90/3=<<TOOL:calculator90/3TOOL>><<OBS30OBS>>30 coconuts to earn $90. Therefore, the total number of trees that he has to harvest is 30/5=<<TOOL:calculator30/5TOOL>><<OBS6OBS>>6. <<TOOL:check_answer6TOOL>><<OBSTrueOBS>>

train_1217

John has 10 members of his family on his father's side. His mother's side is 30% larger. How many people are there in total?

His mother's side is 10*.3=<<TOOL:calculator10*.3TOOL>><<OBS3OBS>>3 people larger than his father's side So his mother's side has 10+3=<<TOOL:calculator10+3TOOL>><<OBS13OBS>>13 people So the total number of people is 13+10=<<TOOL:calculator13+10TOOL>><<OBS23OBS>>23 <<TOOL:check_answer23TOOL>><<OBSTrueOBS>>

train_1218

Jane purchased 15 ice cream cones and 5 cups of pudding. Each ice cream cone cost $5 and each cup of pudding cost $2. How much more did Jane spend on ice cream than on pudding, in dollars?

The cost of 15 cones of ice cream was 15 × $5 = $<<TOOL:calculator15*5TOOL>><<OBS75OBS>>75. The cost of the 5 cups of pudding was 5 × $2 = $<<TOOL:calculator5*2TOOL>><<OBS10OBS>>10. Jane spent $75 - $10 = $<<TOOL:calculator75-10TOOL>><<OBS65OBS>>65 more on ice cream than on pudding. <<TOOL:check_answer65TOOL>><<OBSTrueOBS>>

train_1219

Carol gets a fixed $20 allowance each week. She can also earn $1.5 more dollars each week if she does extra chores. At the end of 10 weeks, she has 425 dollars. How many extra chores did she average each week?

She earned $42.5 on average per week because 425 / 10 =<<TOOL:calculator425/10TOOL>><<OBS42.5OBS>>42.5 She earned $22.5 each week from extra chores because 42.5 - 20 =<<TOOL:calculator42.5-20TOOL>><<OBS22.5OBS>>22.5 She did 15 extra chores a week because 22.5 / 1.5 =<<TOOL:calculator22.5/1.5TOOL>><<OBS15OBS>>15 <<TOOL:check_answer15TOOL>><<OBSTrueOBS>>

train_1220

Carly is making a beaded corset. She's going to add 50 rows of purple beads with 20 beads per row, 40 rows of blue beads with 18 beads per row, and 80 gold beads. If beads cost $1 per 10 beads, how much do all the beads she bought cost?

First find the total number of purple beads Carly needs: 50 rows * 20 beads/row =<<TOOL:calculator50*20TOOL>><<OBS1000OBS>>1000 beads Then find the total number of blue beads Carly needs: 40 rows * 18 beads/row =<<TOOL:calculator40*18TOOL>><<OBS720OBS>>720 beads Then add the number of each color she needs to find the total number she needs: 1000 beads + 720 beads + 80 beads =<<TOOL:calculator1000+720+80TOOL>><<OBS1800OBS>>1800 beads Then divide the number of beads by 10 to find the cost: 1800 beads / 10 beads/$1 = $<<TOOL:calculator1800/10TOOL>><<OBS180OBS>>180 <<TOOL:check_answer180TOOL>><<OBSTrueOBS>>

train_1221

A cake has 8 slices and each slice contains 347 calories. A pan of brownies has 6 brownies and each slice contains 375 calories. How many more calories does the cake have?

The cake has 8 slices * 347 calories =<<TOOL:calculator8*347TOOL>><<OBS2776OBS>>2776 calories. The brownies have 6 slices * 375 =<<TOOL:calculator6*375TOOL>><<OBS2250OBS>>2250 calories. The cake has 2776 calories - 2250 =<<TOOL:calculator2776-2250TOOL>><<OBS526OBS>>526 more calories. <<TOOL:check_answer526TOOL>><<OBSTrueOBS>>

train_1222

Together, Alan and Marcy handed out 150 parking tickets. If Marcy handed out 6 fewer than 5 times as many tickets as Alan, how many tickets did Alan hand out?

Let a be the number of tickets Alan hands out and m be the number Marcy hands out. We know that a + m = 150 and m = 5a - 6 Substituting the second equation into the first, we get a + 5a - 6 = 150 Adding 2 to both sides, we get a + 5a = 156 Combining like terms, we get 6a = 156 Dividing both sides by 6, we get a = 26 <<TOOL:check_answer26TOOL>><<OBSTrueOBS>>

train_1223

In a house, there are 16 cats. Two of them are white, and 25% of them are black. The rest of the cats are grey. How many grey cats are in this house?

In this house, there are 16 * 25/100 =<<TOOL:calculator16*25/100TOOL>><<OBS4OBS>>4 black cats. If there are two white cats, that means that there are 16 - 4 - 2 =<<TOOL:calculator16-4-2TOOL>><<OBS10OBS>>10 grey cats in this house. <<TOOL:check_answer10TOOL>><<OBSTrueOBS>>

train_1224

Three snails raced across a rain-soaked sidewalk. The first snail raced at a speed of 2 feet per minute. The second snail raced at twice the speed of the first snail. And the third snail traveled at five times the rate of speed as the second snail. If it took the first snail 20 minutes to race all the way up the sidewalk, how long, in minutes, did it take for the third snail to race all the way up the sidewalk?

If the first snail traveled the distance in 20 minutes, then the second snail, traveling at twice the rate of speed, would take 20/2=<<TOOL:calculator20/2TOOL>><<OBS10OBS>>10 minutes to complete the race. If the third snail raced at five times the speed of the second snail, then it would take the third snail 10/5=<<TOOL:calculator10/5TOOL>><<OBS2OBS>>2 minutes to race all the way up the sidewalk. <<TOOL:check_answer2TOOL>><<OBSTrueOBS>>

train_1225

Carla has 6 sunflowers and 8 dandelions. The sunflowers have 9 seeds per plant and the dandelions have 12 seeds per plant. What percentage of Carla's seeds come from the dandelions?

First calculate the number of seeds from the sunflowers by multiplying the number of sunflowers by the number of seeds per sunflower: 6 sunflowers * 9 seeds/sunflower =<<TOOL:calculator6*9TOOL>><<OBS54OBS>>54 seeds Next calculate the number of seeds from the dandelions by multiplying the number of dandelions by the number of seeds per dandelion: 8 dandelions * 12 seeds/dandelion =<<TOOL:calculator8*12TOOL>><<OBS96OBS>>96 seeds Now add the number of seeds from each group of plants to find the total number of seeds: 54 seeds + 96 seeds =<<TOOL:calculator54+96TOOL>><<OBS150OBS>>150 seeds Now divide the number of dandelion seeds by the total number of seeds and multiply the answer by 100 to find the percentage of seeds that come from the dandelions: 96 seeds / 150 seeds * 100% = 64% <<TOOL:check_answer64TOOL>><<OBSTrueOBS>>

train_1226

Jennifer decides to share her sweets between herself and her 3 friends. She has 212 green sweets, 310 blue sweets and 502 yellow sweets. How many sweets will Jennifer and her friends get each?

Jennifer has a total of 212 + 310 + 502 =<<TOOL:calculator212+310+502TOOL>><<OBS1024OBS>>1,024 sweets. Jennifer and her friends will get 1,024/4 =<<TOOL:calculator1024/4TOOL>><<OBS256OBS>>256 sweets each. <<TOOL:check_answer256TOOL>><<OBSTrueOBS>>

train_1227

Iain has 200 pennies. He realizes that 30 of his pennies are older than he is. If he wishes to get rid of these pennies and then throw out 20% of his remaining pennies, how many will he have left?

Start with taking out the older pennies 200 pennies - 30 pennies =<<TOOL:calculator200-30TOOL>><<OBS170OBS>>170 pennies Take the 170 pennies * .20 =<<TOOL:calculator170*.20TOOL>><<OBS34OBS>>34 170 pennies - 34 pennies =<<TOOL:calculator170-34TOOL>><<OBS136OBS>>136 pennies. <<TOOL:check_answer136TOOL>><<OBSTrueOBS>>

train_1228

Carly had 42 lollipops to share with her friends. Half of the lollipops were cherry, and the rest were equal amounts of watermelon, sour apple, and grape. How many lollipops were grape?

Of her 42 lollipops, half were cherry, so 42 lollipops / 2 =<<TOOL:calculator42/2TOOL>><<OBS21OBS>>21 were not cherry. Of the 21 that were not cherry, 1/3 of them were grape, so 21 lollipops / 3 =<<TOOL:calculator21/3TOOL>><<OBS7OBS>>7 grape lollipops. <<TOOL:check_answer7TOOL>><<OBSTrueOBS>>

train_1229

Tom bought his games for $200. They tripled in value and he then sold 40% of them. How much did he sell the games for?

The value of the games increased to 200*3=$<<TOOL:calculator200*3TOOL>><<OBS600OBS>>600 So he sold 600*.4=$<<TOOL:calculator600*.4TOOL>><<OBS240OBS>>240 worth of games <<TOOL:check_answer240TOOL>><<OBSTrueOBS>>

train_1230

About 450 000 people lived in Maryville in 2000. In 2005, about 467 000 people lived in Maryville. What is the average number of people added each year?

The total increase of people was counted in 2005 - 2000 =<<TOOL:calculator2005-2000TOOL>><<OBS5OBS>>5 years. In 5 years, there is a total of 467 000 - 450 000 = 17 000 people increase. So, each year, the average number of people added is 17 000/5 = 3 400. <<TOOL:check_answer3400TOOL>><<OBSTrueOBS>>

train_1231

A competition has racers competing on bicycles and tricycles to win a grand prize of $4000. If there are 40 people in the race, and 3/5 of them are riding on bicycles, how many wheels do the bicycles and tricycles in the race have combined?

If 3/5 of the people in the race are riding bicycles, their number is 3/5 * 40 people =<<TOOL:calculator3/5*40TOOL>><<OBS24OBS>>24 people Since a bicycle has 2 wheels, and 24 people were riding on a bicycle each, the total number of bicycle wheels in the race is 2 wheels/bike * 24 bikes =<<TOOL:calculator2*24TOOL>><<OBS48OBS>>48 wheels The number of racers on tricycles is 40 people - 24 people =<<TOOL:calculator40-24TOOL>><<OBS16OBS>>16 people Since a tricycle has 3 wheels, and 16 people were riding on a tricycle each, the total number of tricycle wheels in the race is 3 wheels/trike * 16 trikes =<<TOOL:calculator3*16TOOL>><<OBS48OBS>>48 wheels The combined total for bicycle and tricycle wheels in the race is 48 wheels + 48 wheels =<<TOOL:calculator48+48TOOL>><<OBS96OBS>>96 wheels <<TOOL:check_answer96TOOL>><<OBSTrueOBS>>

train_1232

Ali turned 8 years old this year, and is now 3 years older than Yusaf. If Umar is twice Yusaf’s age, how old is Umar?

If Ali is 3 years older, then Yusaf must be 8 – 3 = 5 years old. Umar is twice Yusaf’s age, so he must be 5 * 2 =<<TOOL:calculator2*5TOOL>><<OBS10OBS>>10 years old. <<TOOL:check_answer10TOOL>><<OBSTrueOBS>>

train_1233

A cleaning company produces two sanitizer sprays. One spray kills 50% of germs, and another spray kills 25% of germs. However, 5% of the germs they kill are the same ones. What percentage of germs would be left after using both sanitizer sprays together?

After the first spray kills 50% of germs, there will be 100 - 50 =<<TOOL:calculator100-50TOOL>><<OBS50OBS>>50% left. The second spray kills 25%, but 5% have already been killed by the 50% spray, so it kills 25 - 5 =<<TOOL:calculator25-5TOOL>><<OBS20OBS>>20%. After the second spray kills 20% of the remaining germs, there will be 50 - 20 =<<TOOL:calculator50-20TOOL>><<OBS30OBS>>30% left. <<TOOL:check_answer30TOOL>><<OBSTrueOBS>>

train_1234

There are four times as many boys at Lulu's party as girls. Each boy paid twice the money that each girl paid to attend the party. If there are 40 boys at the party and each boy paid $50 to attend the party, calculate the total amount of money collected at the party.

The total amount of money collected from the boy's payment is 40*$50 = $<<TOOL:calculator40*50TOOL>><<OBS2000OBS>>2000 There are four times as many boys at Lulu's party as girls, meaning there are 40/4 =<<TOOL:calculator40/4TOOL>><<OBS10OBS>>10 girls at the party. since each boy paid twice the money that each girl paid to attend the party, each girl paid $50/2 = $<<TOOL:calculator50/2TOOL>><<OBS25OBS>>25 The total amount of money collected from the girl's payment is $25*10 = $<<TOOL:calculator25*10TOOL>><<OBS250OBS>>250 The total amount of money collected at the party is $250+$2000 = $<<TOOL:calculator250+2000TOOL>><<OBS2250OBS>>2250 <<TOOL:check_answer2250TOOL>><<OBSTrueOBS>>

train_1235

To make yogurt, the company needs milk and fruit. Milk is bought at $1.5 per liter and fruit at $2 per kilogram. To make one batch of yogurt, the company needs 10 liters of milk, and 3 kilograms of fruit. How much does it cost the firm to produce three batches of yogurt?

For the fruits, the company needs to pay 3 * 2 = $<<TOOL:calculator3*2TOOL>><<OBS6OBS>>6 per batch. 10 liters of milk is a cost of 10 * 1.5 = $<<TOOL:calculator10*1.5TOOL>><<OBS15OBS>>15 for the company. So in total one batch is a cost of 15 + 6 = $<<TOOL:calculator15+6TOOL>><<OBS21OBS>>21. So three batches of yogurt is a cost of 3 * 21 = $<<TOOL:calculator3*21TOOL>><<OBS63OBS>>63. <<TOOL:check_answer63TOOL>><<OBSTrueOBS>>

train_1236

Gerald is a furniture maker. He has 672 pieces of wood and he wants to make some tables and chairs. It takes 12 pieces of wood to make a table and 8 pieces of wood to make a chair. How many chairs can he make if he makes 24 tables?

Each table takes 12 pieces of wood to make so 24 tables will take 24*12 =<<TOOL:calculator12*24TOOL>><<OBS288OBS>>288 There were originally 672 pieces of wood so now there are 672-288 =<<TOOL:calculator672-288TOOL>><<OBS384OBS>>384 pieces left 8 pieces of wood make 1 chair so 384 pieces can make 384/8 =<<TOOL:calculator384/8TOOL>><<OBS48OBS>>48 chairs <<TOOL:check_answer48TOOL>><<OBSTrueOBS>>

train_1237

Jamal works at a library shelving books. He has a cart full of books to put away in different sections. In the history section, he shelves 12 books. In the fiction section, he shelves 19 books. In the children’s section, he shelves 8 books but finds 4 that were left in the wrong place that he adds to his cart to shelve elsewhere. He still has 16 books to shelve. How many books did he start with in the cart?

Jamal started with B books in the cart. He had B - 12 books after the history section. He had B - 12 - 19 = B - 31 books after the fiction section. He had B - 31 - 8 + 4 = B - 35 books after the children’s section. He still had B - 35 = 16 books to shelve. Thus, he started with B = 16 + 35 =<<TOOL:calculator16+35TOOL>><<OBS51OBS>>51 books in the cart. <<TOOL:check_answer51TOOL>><<OBSTrueOBS>>

train_1238

Levi and his brother were playing basketball. Levi had scored 8 times and his brother had scored 12 times. Levi was determined to beat his brother by at least 5 baskets. How many more times does Levi have to score in order to reach his goal if his brother scores another 3 times?

Altogether, Levi's brother scores 12 + 3 =<<TOOL:calculator12+3TOOL>><<OBS15OBS>>15 times. If Levi wants to beat him by 5, he needs to score a total of 15 + 5 =<<TOOL:calculator15+5TOOL>><<OBS20OBS>>20 times. Levi needs to score another 20 - 8 =<<TOOL:calculator20-8TOOL>><<OBS12OBS>>12 times. <<TOOL:check_answer12TOOL>><<OBSTrueOBS>>

train_1239

There are 24 toys in the box and ¼ of them are action figures. The remaining toys are all dolls. How many dolls are there?

Since there are 24 toys in the box, there are ¼ * 24 = 6 action figures. Because the rest of the toys are dolls, there are 24 - 6 =<<TOOL:calculator24-6TOOL>><<OBS18OBS>>18 dolls in the box. <<TOOL:check_answer18TOOL>><<OBSTrueOBS>>

train_1240

If I give my brother 2 marbles I will have double his number of marbles, but my friend will have triple the number I do. The total number of marbles we have together is 63. How many marbles do I have?

Let X be the number of marbles I have. If I give my brother 2 marbles, I'll have X-2 marbles left. And my brother will have (X-2)/2 marbles. And my friend will have (X-2)*3 left. So the total number of marbles is X-2 + (X-2)/2 + (X-2)*3 = 63. (X-2)*9/2 = 63. X-2 = 14. X =<<TOOL:calculator16TOOL>><<OBS16OBS>>16 marbles. <<TOOL:check_answer16TOOL>><<OBSTrueOBS>>

train_1241

Belinda’s dog is missing, so she made 200 flyers to distribute around town with the help of her friends. Ryan passed out 42 flyers, Alyssa passed out 67, Scott passed out 51 and Belinda passed out the rest. What percentage of the flyers did Belinda pass out?

The total number of flyers Belinda’s friends passed out was 42 by Ryan + 67 by Alyssa + 51 by Scott =<<TOOL:calculator42+67+51TOOL>><<OBS160OBS>>160 flyers. Belinda passed out 200 total flyers – 160 flyers passed out by friends =<<TOOL:calculator200-160TOOL>><<OBS40OBS>>40 flyers. To express this as a decimal, divide Belinda’s 40 flyers / 200 total flyers =<<TOOL:calculator40/200TOOL>><<OBS0.20OBS>>0.20. Belinda passed out 0.20 x 100% = 20% of the flyers. <<TOOL:check_answer20TOOL>><<OBSTrueOBS>>

train_1242

James had two browsers on his computer. In each browser, he opened three windows, each with ten tabs. What's the total number of tabs he opened in all the browsers together?

The total number of tabs in three windows of each browser is 10*3 =<<TOOL:calculator10*3TOOL>><<OBS30OBS>>30 tabs. If James had two browsers on his computer and in each browser he opened three windows, the total number of tabs in the two browsers is 2*30 =<<TOOL:calculator2*30TOOL>><<OBS60OBS>>60 tabs. <<TOOL:check_answer60TOOL>><<OBSTrueOBS>>

train_1243

Aaron and his brother Carson each saved up $40 to go to dinner. The bill is 3/4 of their total money. After, they go out for ice cream. Each scoop costs $1.5 and they get the same amount as each other. If they leave with $1 in change each, how many scoops did they each buy?

They had $80 saved up because 2 x 40 =<<TOOL:calculator2*40TOOL>><<OBS80OBS>>80 They spent $60 because 80 x (3/4) =<<TOOL:calculator80*(3/4)TOOL>><<OBS60OBS>>60 They had $20 left for ice cream because 80 - 60 =<<TOOL:calculator80-60TOOL>><<OBS20OBS>>20 They had $2 left after leaving the ice cream shop because 2 x 1 =<<TOOL:calculator2*1TOOL>><<OBS2OBS>>2 They spent $18 on ice cream because 20 - 2 =<<TOOL:calculator20-2TOOL>><<OBS18OBS>>18 The bought 12 scoops of ice cream because 18 / 1.5 =<<TOOL:calculator18/1.5TOOL>><<OBS12OBS>>12 The each bought 6 scoops because 12 / 2 =<<TOOL:calculator12/2TOOL>><<OBS6OBS>>6 <<TOOL:check_answer6TOOL>><<OBSTrueOBS>>

train_1244

Mary needs school supplies. She has 6 classes and needs 1 folder for each class. She also needs 3 pencils for each class. She decides that for every 6 pencils she should have 1 eraser. She also needs a set of paints for an art class. Folders cost $6, pencils cost $2, and erasers cost $1. If she spends $80, how much did the set of paints cost in dollars?

Mary needs 6*1=<<TOOL:calculator6*1TOOL>><<OBS6OBS>>6 folders. Mary needs 6*3=<<TOOL:calculator6*3TOOL>><<OBS18OBS>>18 pencils. Mary needs 18/6=<<TOOL:calculator18/6TOOL>><<OBS3OBS>>3 erasers. Mary spends 6*6= $<<TOOL:calculator6*6TOOL>><<OBS36OBS>>36 on folders. Mary spends 18*2= $<<TOOL:calculator18*2TOOL>><<OBS36OBS>>36 on pencils. Mary spends 3*1= $<<TOOL:calculator3*1TOOL>><<OBS3OBS>>3 on erasers. Mary spends 36+36+3= $<<TOOL:calculator36+36+3TOOL>><<OBS75OBS>>75 on all the supplies except the paints. Mary spends 80-75= $<<TOOL:calculator80-75TOOL>><<OBS5OBS>>5 on the paint set. <<TOOL:check_answer5TOOL>><<OBSTrueOBS>>

train_1245

Mark started the day with 14 buttons. His friend Shane gave him 3 times that amount of buttons. Then his other friend Sam asked if he could have half of Mark’s buttons. How many buttons did Mark end up with?

Shane gave Mark 14*3=<<TOOL:calculator14*3TOOL>><<OBS42OBS>>42 buttons After that Mark had 42+14=<<TOOL:calculator42+14TOOL>><<OBS56OBS>>56 buttons Then Mark gave 56/2=<<TOOL:calculator56/2TOOL>><<OBS28OBS>>28 buttons to Shane Which left Mark with 28 buttons <<TOOL:check_answer28TOOL>><<OBSTrueOBS>>

train_1246

Aubriella is pouring water into a 50-gallon fish tank at the rate of 1 gallon every 20 seconds. How many more gallons will she have to pour into the tank to fill the tank if she poured water into the fish tank for 6 minutes?

When she poured water into the gallon for 6 minutes, the total time in seconds she took is 6 minutes * 60 seconds/minute =<<TOOL:calculator6*60TOOL>><<OBS360OBS>>360 seconds. If in 20 seconds she poured 1 gallon of water into the tank, in 360 seconds, she poured 360 seconds / 20 seconds/gallon =<<TOOL:calculator360/20/1TOOL>><<OBS18OBS>>18 gallons of water into the tank. Aubriella will have to pour 50 gallons - 18 gallons =<<TOOL:calculator50-18TOOL>><<OBS32OBS>>32 more gallons into the tank to fill the tank. <<TOOL:check_answer32TOOL>><<OBSTrueOBS>>

train_1247

Sebastian bought art exhibit tickets for his parents and himself. Tickets were $44 per person. He was also charged an $18 service fee for the online transaction. What is the total amount he paid for the tickets?

Tickets for Sebastian and his parents cost $44 x 3 = $<<TOOL:calculator44*3TOOL>><<OBS132OBS>>132. Tickets and service charge cost $132 + $18 = $<<TOOL:calculator132+18TOOL>><<OBS150OBS>>150. <<TOOL:check_answer150TOOL>><<OBSTrueOBS>>

train_1248

On Monday, a restaurant sells forty dinners. On Tuesday, it sells 40 more dinners than it did Monday. On Wednesday, it sells half the amount of dinners it sold on Tuesday. On Thursday they changed their recipe, and then sold 3 more dinners than they did on Wednesday. How many dinners were sold in those 4 days?

On Tuesday the restaurant sells 40+40 =<<TOOL:calculator40+40TOOL>><<OBS80OBS>>80 dinners. On Wednesday the restaurant sells 80/2 =<<TOOL:calculator80/2TOOL>><<OBS40OBS>>40 dinners. On Thursday the restaurant sells 40+3 =<<TOOL:calculator40+3TOOL>><<OBS43OBS>>43 dinners. In those 4 days, the restaurant sells a total of 40+80+40+43 =<<TOOL:calculator40+80+40+43TOOL>><<OBS203OBS>>203 dinners. <<TOOL:check_answer203TOOL>><<OBSTrueOBS>>

train_1249

On a particular week, Fatima's restaurant served 25 people food and drinks, and 3/5 of that number came to buy coffee. How many people did not buy coffee in the restaurant?

The number of customers who were served coffee in the restaurant is 3/5*25 =<<TOOL:calculator3/5*25TOOL>><<OBS15OBS>>15 If the total number of customers who came to the restaurant was 25, then 25-15 =<<TOOL:calculator25-15TOOL>><<OBS10OBS>>10 customers did not buy coffee <<TOOL:check_answer10TOOL>><<OBSTrueOBS>>

train_1250

A warehouse store sells cartons of gum. Each carton contains 5 packs of gum, and there are 3 sticks of gum in each pack. Each brown box contains 4 cartons of gum. How many sticks of gum are there in 8 brown boxes?

5 packs of gum contain 5*3=<<TOOL:calculator5*3TOOL>><<OBS15OBS>>15 sticks of gum. If each brown box contains 4 cartons, 8 brown boxes contain 8 * 4=<<TOOL:calculator8*4TOOL>><<OBS32OBS>>32 cartons. So, 8 brown boxes contain 32 * 15=<<TOOL:calculator32*15TOOL>><<OBS480OBS>>480 sticks of gum. <<TOOL:check_answer480TOOL>><<OBSTrueOBS>>

train_1251

Colleen is making a batch of 48 cookies. She's going to add 108 chocolate chips and one-third as many M&Ms to the whole batch. What are the average number of chocolate pieces in each cookie?

First find the total number of M&Ms: 108 chocolate chips / 3 chocolate chips / 1 M&M =<<TOOL:calculator108/3/1TOOL>><<OBS36OBS>>36 M&Ms Then add that number to the number of chocolate chips to find the total number of pieces of chocolate: 36 M&Ms + 108 chocolate chips =<<TOOL:calculator36+108TOOL>><<OBS144OBS>>144 chocolates Then divide the total number of chocolates by the number of cookies to find the number of pieces of chocolate per cookie: 144 chocolates / 48 cookies =<<TOOL:calculator144/48TOOL>><<OBS3OBS>>3 chocolates/cookie <<TOOL:check_answer3TOOL>><<OBSTrueOBS>>

train_1252

50% of substitute teachers walk out after 1 hour of teaching. 30% of the remainder quit before lunch. If 60 substitute teachers show up at 7 AM, how many will be left after lunch?

First find the number of substitute teachers left after half quit: 60 teachers / 2 =<<TOOL:calculator60/2TOOL>><<OBS30OBS>>30 teachers Then find how many teachers quit after an hour but before lunch: 30 teachers * 30% =<<TOOL:calculator30*30*.01TOOL>><<OBS9OBS>>9 teachers Then subtract that number from the number of teachers left after one hour to find how many are left after lunch: 30 teachers - 9 teachers =<<TOOL:calculator30-9TOOL>><<OBS21OBS>>21 teachers <<TOOL:check_answer21TOOL>><<OBSTrueOBS>>

train_1253

A mother duck as 8 ducklings. The first 3 ducklings find 5 snails each. Another 3 ducklings find 9 snails each, and the remaining ducklings each find half the number of snails that mother duck finds. If mother duck finds tree times the total number of snails as the first 2 groups of ducklings, how many snails does the family of ducks have collectively?

The first 3 ducklings find 3 x 5 =<<TOOL:calculator3*5TOOL>><<OBS15OBS>>15 snails The next 3 ducklings find 3 x 9 =<<TOOL:calculator3*9TOOL>><<OBS27OBS>>27 snails They find a total of 15 + 27 =<<TOOL:calculator15+27TOOL>><<OBS42OBS>>42 snails Mother duck finds 42 x 3 =<<TOOL:calculator42*3TOOL>><<OBS126OBS>>126 snails The last group has 8 - 3 - 3 =<<TOOL:calculator8-3-3TOOL>><<OBS2OBS>>2 ducklings They find 126/2 =<<TOOL:calculator126/2TOOL>><<OBS63OBS>>63 snails each The family of ducks found a total of 42 +126 + 63 + 63 =<<TOOL:calculator42+126+63+63TOOL>><<OBS294OBS>>294 snails <<TOOL:check_answer294TOOL>><<OBSTrueOBS>>

train_1254

Charley bought 30 pencils. She lost 6 pencils while moving to school, and of course, also lost 1/3 of the remaining pencils because she wasn't very good at keeping track of pencils. How many pencils does she currently have?

If Charley bought 30 pencils and lost 6 while moving, she remained with 30-6=<<TOOL:calculator30-6TOOL>><<OBS24OBS>>24 pencils. Because she isn't good at keeping track of her pencils, Charley lost 1/3*24 =<<TOOL:calculator1/3*24TOOL>><<OBS8OBS>>8 more pencils. She currently has 24-8 =<<TOOL:calculator24-8TOOL>><<OBS16OBS>>16 pencils. <<TOOL:check_answer16TOOL>><<OBSTrueOBS>>

train_1255

Barney the dinosaur weighs 1500 pounds more than five regular dinosaurs combined. If each regular dinosaur weighs 800 pounds, find the combined weight of Barney and the five regular dinosaurs' weights?

If each regular dinosaur weighs 800 pounds, five regular dinosaurs weigh 5*800=<<TOOL:calculator5*800TOOL>><<OBS4000OBS>>4000 pounds. Since Barney the dinosaur weighs 1500 pounds more than five regular dinosaurs combined, he weighs 4000+1500=5500 pounds. The combined weight of Barney and the five regular dinosaurs' weights is 5500+4000=<<TOOL:calculator5500+4000TOOL>><<OBS9500OBS>>9500 pounds. <<TOOL:check_answer9500TOOL>><<OBSTrueOBS>>

train_1256

Jamie and Oliver are planning to go on a vacation. A plane ticket costs $24 for each person and a hotel stay costs $12 for each person per day. How much money will they spend on the vacation if they stay for 3 days?

Jamie and Oliver will spend $24 x 2 = $<<TOOL:calculator24*2TOOL>><<OBS48OBS>>48 for the plane ticket. They will spend $12 x 2 = $<<TOOL:calculator12*2TOOL>><<OBS24OBS>>24 for staying in the hotel per day. So, the total amount they will spend on the hotel for a 3-day stay is $24 x 3 = $<<TOOL:calculator24*3TOOL>><<OBS72OBS>>72. Therefore, the total amount they will spend on their vacation is $72 + $48 = $<<TOOL:calculator72+48TOOL>><<OBS120OBS>>120. <<TOOL:check_answer120TOOL>><<OBSTrueOBS>>

train_1257

Chuck can ride the merry-go-round 5 times longer than Dave who can only ride it for 10 minutes before getting sick. Erica can stay on the merry-go-round 30% longer than Chuck before getting sick. How long can Erica stay on the merry-go-round?

Dave can ride the merry-go-round for 10 minutes and Chuck can ride 5 times longer than Dave so he can ride for 10*5 =<<TOOL:calculator10*5TOOL>><<OBS50OBS>>50 minutes Erica can stay on 30% longer than Chuck who can ride for 50 minutes so that's an extra .30*50 =<<TOOL:calculator30*.01*50TOOL>><<OBS15OBS>>15 minutes Chuck can ride for 50 minutes and Erica can ride an extra 15 minutes for a total of 50+15 =<<TOOL:calculator50+15TOOL>><<OBS65OBS>>65 minutes <<TOOL:check_answer65TOOL>><<OBSTrueOBS>>

train_1258

Maddy is in college for 8 semesters. She needs 120 credits to graduate. If each class is 3 credits, how many classes does she need to take per semester?

120 credits / 3 credits is<<TOOL:calculator120/3TOOL>><<OBS40OBS>>40. 40 credits/ 8 semester =<<TOOL:calculator40/8TOOL>><<OBS5OBS>>5 classes per semester. Maddy needs to take 5 classes per semester <<TOOL:check_answer5TOOL>><<OBSTrueOBS>>

train_1259

Joey needs to take a new prescription. The first day he needs to take one pill. Each day he must take two more pills than the previous day. How many pills will he take in a week?

For the second day he takes 1 + 2 =<<TOOL:calculator1+2TOOL>><<OBS3OBS>>3 pills. For the third day he takes 3 + 2 =<<TOOL:calculator3+2TOOL>><<OBS5OBS>>5 pills. For the fourth day he takes 5 + 2 =<<TOOL:calculator5+2TOOL>><<OBS7OBS>>7 pills. For the fifth day he takes 7 + 2 =<<TOOL:calculator7+2TOOL>><<OBS9OBS>>9 pills. For the sixth day he takes 9 + 2 =<<TOOL:calculator9+2TOOL>><<OBS11OBS>>11 pills. For the seventh day he takes 11 + 2 =<<TOOL:calculator11+2TOOL>><<OBS13OBS>>13 pills. For the entire week he takes a total of 1 + 3 + 5 + 7 + 9 + 11 + 13 =<<TOOL:calculator1+3+5+7+9+11+13TOOL>><<OBS49OBS>>49 pills. <<TOOL:check_answer49TOOL>><<OBSTrueOBS>>

train_1260

Gina is participating in a neighborhood clean-up filling bags with litter. She was able to collect two bags of litter herself. The rest of the neighborhood together collected 82 times as much as Gina did by herself. Each bag of litter weighs 4 pounds. How many pounds was all the litter they collected?

The rest of the neighborhood collected 82 * 2 =<<TOOL:calculator82*2TOOL>><<OBS164OBS>>164 bags of litter. With Gina’s bags, they had 164 + 2 =<<TOOL:calculator164+2TOOL>><<OBS166OBS>>166 bags of litter. Thus, the litter weighed 166 * 4 =<<TOOL:calculator166*4TOOL>><<OBS664OBS>>664 pounds. <<TOOL:check_answer664TOOL>><<OBSTrueOBS>>

train_1261

Jennifer will be 30 years old in ten years. At that time, her sister Jordana will be three times as old Jennifer. How old is Jennifer's sister now?

When Jennifer is 30 years old in ten years, her sister Jordana will be 3*30=90 years old. She's currently 10 years younger, so she's 90 - 10 = 80 years old <<TOOL:check_answer80TOOL>><<OBSTrueOBS>>

train_1262

For every bike Henry sells, he is paid $8 more than he is paid to paint the bike. If Henry gets $5 to paint the bike, how much does he get paid to sell and paint 8 bikes?

Henry gets paid 5 + 13 = $<<TOOL:calculator5+13TOOL>><<OBS18OBS>>18 for each bike painted and sold. In total, Henry will be paid 8 * 18 = $<<TOOL:calculator8*18TOOL>><<OBS144OBS>>144 for painting and selling 8 bikes. <<TOOL:check_answer144TOOL>><<OBSTrueOBS>>

train_1263

George is about to celebrate his 25th birthday. Since his 15th birthday, he's been given a special $1 bill from his parents. They told him that on his 25th birthday, for every bill he still has, they will give him $1.5 in exchange. He spent 20% of his special bills. How much will he receive from his parents when he exchanges them?

He received 10 special bills because 25 - 15 =<<TOOL:calculator25-15TOOL>><<OBS10OBS>>10 He has 80% of them left because 100 - 20 =<<TOOL:calculator100-20TOOL>><<OBS80OBS>>80 He has 8 left because 10 x .8 =<<TOOL:calculator10*.8TOOL>><<OBS8OBS>>8 His parents will give her $12 for them because 8 x 1.5 =<<TOOL:calculator8*1.5TOOL>><<OBS12OBS>>12 <<TOOL:check_answer12TOOL>><<OBSTrueOBS>>

train_1264

Joseph drives his car at 50 mph for 2.5 hours. Kyle drives his car at 62 mph for 2 hours. How many more miles does Joseph drive than Kyle?

Joseph travels for 50 * 2.5 =<<TOOL:calculator50*2.5TOOL>><<OBS125OBS>>125 miles. Kyle travels for 62 * 2 =<<TOOL:calculator62*2TOOL>><<OBS124OBS>>124 miles. Joseph drives for 125 - 124 =<<TOOL:calculator125-124TOOL>><<OBS1OBS>>1 mile more than Kyle. <<TOOL:check_answer1TOOL>><<OBSTrueOBS>>

train_1265

Mark goes into the store to buy some groceries. He buys 6 2$ cans of soup, 2 $5 loaves of bread, 2 3$ boxes of cereal, and 2 $4 gallons of milk. When he gets to the register, he opens his wallet to pay and realizes he only has $10 bills in there. How many $10 bills does he need to use to pay?

Mark buys 6 $2 cans of soup, meaning he spends 6*2=<<TOOL:calculator6*2TOOL>><<OBS12OBS>>12 dollars on soup. Mark buys 2 $5 loaves of bread, meaning he spends 2*5=<<TOOL:calculator2*5TOOL>><<OBS10OBS>>10 dollars on bread. Mark buys 2 $3 boxes of cereal, meaning he spends 2*3=<<TOOL:calculator2*3TOOL>><<OBS6OBS>>6 dollars on cereal. Mark buys 2 $4 gallons of milk, meaning he spends 2*4=<<TOOL:calculator2*4TOOL>><<OBS8OBS>>8 dollars on milk. All added together, this means Mark spends 12+10+6+8=<<TOOL:calculator12+10+6+8TOOL>><<OBS36OBS>>36 dollars Since Mark only has $10 bills, he spends 36/10=<<TOOL:calculator36/10TOOL>><<OBS3.6OBS>>3.6 tens on it, which rounds up to 4 as you cannot spend .6 of an undividable item. <<TOOL:check_answer4TOOL>><<OBSTrueOBS>>

train_1266

There are 100 people in a theater. If 19 of these people have blue eyes, half of them have brown eyes, a quarter have black eyes, and the rest have green eyes, how many of them have green eyes?

100/2 =<<TOOL:calculator100/2TOOL>><<OBS50OBS>>50 people in the theater have brown eyes. 100/4 =<<TOOL:calculator100/4TOOL>><<OBS25OBS>>25 people in the theater have black eyes. There are 50+25+19 =<<TOOL:calculator50+25+19TOOL>><<OBS94OBS>>94 people in the theater with either brown, black, or blue eyes. There are 100-94 =<<TOOL:calculator100-94TOOL>><<OBS6OBS>>6 people in the theater with green eyes. <<TOOL:check_answer6TOOL>><<OBSTrueOBS>>

train_1267

A group of nine turtles sat on a log. Two less than three times the original number of turtles climbed onto the log with the original group, creating an even larger group on the log. Suddenly, half of the large group of turtles were frightened by a sound and jumped off of the log and ran away. How many turtles remained on the log?

Two less than three times the original number of turtles is (9*3)-2=<<TOOL:calculator9*3-2TOOL>><<OBS25OBS>>25. Thus, The original 9 were joined by 25 more, for a total of 25+9=<<TOOL:calculator9+25TOOL>><<OBS34OBS>>34 turtles. But half of the 34 turtles scurried away, leaving half remaining, or 34/2=<<TOOL:calculator34/2TOOL>><<OBS17OBS>>17 brave turtles <<TOOL:check_answer17TOOL>><<OBSTrueOBS>>

train_1268

All 20 of Grant’s baby teeth have fallen out and he has a total of $54 from the tooth fairy. Every time he lost a tooth, he put it under his pillow for the tooth fairy, except for one that he dropped on the way home from school and another he swallowed accidentally. The tooth fairy left Grant $20 when he lost his first tooth. How much did the tooth fairy leave him per tooth after his first tooth, assuming equal money exchanged for each tooth thereafter?

Grant’s 20 baby teeth – 1 tooth he dropped – 1 he swallowed =<<TOOL:calculator20-1-1TOOL>><<OBS18OBS>>18 teeth left for the tooth fairy. We aren’t counting his first tooth, so 18 teeth – 1 first tooth =<<TOOL:calculator18-1TOOL>><<OBS17OBS>>17 teeth. Grant received $54 - $20 = $<<TOOL:calculator54-20TOOL>><<OBS34OBS>>34 in total for all the teeth after the first. So he received $34 / 17 teeth = $<<TOOL:calculator34/17TOOL>><<OBS2OBS>>2 for each tooth after his first tooth. <<TOOL:check_answer2TOOL>><<OBSTrueOBS>>

train_1269

A man owned 1/2 of a lot. He sold 1/10 of his share for the amount of $460. What is the worth of the entire lot?

If 1/10 of the man's lot is equal to $460, then the man's land is worth $460 x 10 = $<<TOOL:calculator460*10TOOL>><<OBS4600OBS>>4600. Since 1/2 of the whole lot is worth $4600, then the whole lot is worth $4600 x 2 = $<<TOOL:calculator4600*2TOOL>><<OBS9200OBS>>9200. <<TOOL:check_answer9200TOOL>><<OBSTrueOBS>>

train_1270

Sam has 18 cows. 5 more than half the cows are black. How many cows are not black?

Half of the cows: 18/2=<<TOOL:calculator18/2TOOL>><<OBS9OBS>>9 Black cows: 5+9=<<TOOL:calculator5+9TOOL>><<OBS14OBS>>14 18-14=<<TOOL:calculator18-14TOOL>><<OBS4OBS>>4 cows <<TOOL:check_answer4TOOL>><<OBSTrueOBS>>

train_1271

Going into the final game, Duke is so close to breaking the school's record for most points scored in a basketball season. He only needs 17 more points to tie the record. By the end of the game, Duke breaks the record by 5 points. The old record was 257 points. In the final game Duke made 5 free throws (worth one point), and 4 regular baskets (worth two points), and some three-pointers. Normally, he scores 2 three-pointers a game. How many more three-pointers did he score in the final game compared to his normal amount?

Duke scored 22 points in the final game because 17 + 5 =<<TOOL:calculator17+5TOOL>><<OBS22OBS>>22 He scored 5 points of free-throws, because 5 x 1 =<<TOOL:calculator5*1TOOL>><<OBS5OBS>>5 He scored 8 points of regular baskets because 4 x 2 =<<TOOL:calculator4*2TOOL>><<OBS8OBS>>8 He made 9 points of three-pointers because 22 - 5 - 8 =<<TOOL:calculator22-5-8TOOL>><<OBS9OBS>>9 He scored 3 three-pointers in the final game because 9 / 3 =<<TOOL:calculator9/3TOOL>><<OBS3OBS>>3 Duke scored 1 more than normal because 3 - 2 =<<TOOL:calculator3-2TOOL>><<OBS1OBS>>1 <<TOOL:check_answer1TOOL>><<OBSTrueOBS>>

train_1272

Tina decides to fill a jar with coins. In the first hour she puts in 20 coins. During the next two hours she puts in 30 coins each time. During the fourth hour she puts in 40 coins. During the fifth hour her mother asks to borrow some money so she takes 20 coins out. How many coins are left after the fifth hour?

There are 20 coins during the first hour. 30 coins are added during the second and third hours and 40 coins are added during the fourth hour. By the fourth hour there are 20+30+30+40 =<<TOOL:calculator20+30+30+40TOOL>><<OBS120OBS>>120 coins The number of coins after giving 20 to her mother is 120-20=<<TOOL:calculator120-20TOOL>><<OBS100OBS>>100 <<TOOL:check_answer100TOOL>><<OBSTrueOBS>>

train_1273

Jerry needs to shingle 3 roofs. Each roof is made of two slanted rectangular sides measuring 20 feet by 40 feet. If he needs 8 shingles to cover one square foot of roof, how many shingles does he need total?

First find the area of one side of a roof: 20 feet * 40 feet =<<TOOL:calculator20*40TOOL>><<OBS800OBS>>800 square feet Then multiply that number by 2 to find the total area of both sides of the roof: 800 square feet/side * 2 sides = 1600 square feet Then multiply that number by the number of roofs to find the total area of all the roofs: 1600 square feet/roof * 3 roofs = 4800 square feet Then multiply the total area of the roofs by the number of shingles needed per square foot to find the total number of shingles needed: 4800 square feet * 8 singles/square foot =<<TOOL:calculator4800*8TOOL>><<OBS38400OBS>>38400 shingles <<TOOL:check_answer38400TOOL>><<OBSTrueOBS>>

train_1274

After uploading her video to Youtube, Kallie received 4000 views on the first day. When she checked her channel 4 days later, she realized that the number of views had increased by a number ten times more than the views on the first day. If 50000 more people viewed the video after another two days, determine the number of views the video had gained on Youtube?

If the number of views on the first day was 4000, the video's views on Youtube increased by 10*4000= 40000 after four days. The total number of views of the video on Youtube after four days was 40000+4000 =<<TOOL:calculator40000+4000TOOL>><<OBS44000OBS>>44000 If 50000 more people viewed the video, the total number of views that the Youtube video had is 44000+50000 = 94000 <<TOOL:check_answer94000TOOL>><<OBSTrueOBS>>

train_1275

Brandon can catch 6 squirrels or two rabbits in 1 hour. Each squirrel has 300 calories and each rabbit has 800 calories. How many more calories will he get per hour if he catches squirrels instead of rabbits?

First find how many calories per hour Brandon gets from squirrels: 300 calories/squirrel * 6 squirrels =<<TOOL:calculator300*6TOOL>><<OBS1800OBS>>1800 calories Then find how many calories per hour Brandon gets from rabbits: 800 calories/rabbit * 2 rabbits = 1600 calories Then subtract the number of calories per hour from rabbits from the number from squirrels to find the difference: 1800 calories - 1600 calories =<<TOOL:calculator1800-1600TOOL>><<OBS200OBS>>200 calories <<TOOL:check_answer200TOOL>><<OBSTrueOBS>>

train_1276

Roe saved $10 per month from January to July and saved $15 per month from August to November. How much should she save in December so she will have a total savings of $150 in the year?

Since there are 7 months from January to July, then Roe's savings for those months sum up to $10 x 7 = $<<TOOL:calculator7*10TOOL>><<OBS70OBS>>70. Since there are 4 months from August to November, then her savings for those months sum up to $15 x 4 = $<<TOOL:calculator4*15TOOL>><<OBS60OBS>>60. Her total savings from January to November is $70 + $60 = $<<TOOL:calculator70+60TOOL>><<OBS130OBS>>130. Therefore, she needs to save $150 - $130 = $<<TOOL:calculator150-130TOOL>><<OBS20OBS>>20 in December. <<TOOL:check_answer20TOOL>><<OBSTrueOBS>>

train_1277

Amelia has laundry to do. She has a load of whites that will take 72 minutes in the washing machine and 50 minutes in the dryer. She has a load of darks that will take 58 minutes in the washing machine and 65 minutes in the dryer. She has a load of colors that will take 45 minutes in the washer and 54 minutes in the dryer. If she does one load at a time, how long will it take her to wash and dry all three loads, in minutes?

It will take her 72 minutes in the washer + 50 minutes in the dryer =<<TOOL:calculator72+50TOOL>><<OBS122OBS>>122 minutes for the whites. It will take her 58 minutes in the washer + 65 minutes in the dryer =<<TOOL:calculator58+65TOOL>><<OBS123OBS>>123 minutes for the darks. It will take her 45 minutes in the washer + 54 minutes in the dryer =<<TOOL:calculator45+54TOOL>><<OBS99OBS>>99 minutes for the colors. Altogether, it will take 122 minutes for whites + 123 minutes for darks + 99 minutes for colors =<<TOOL:calculator122+123+99TOOL>><<OBS344OBS>>344 minutes to do the laundry. <<TOOL:check_answer344TOOL>><<OBSTrueOBS>>

train_1278

Bill decides to bring donuts to work for a meeting that day. He buys a box of donuts that has 50 in total in them. He eats 2 on the ride in because he's hungry. When he gets to the office, the secretary takes another 4 out of the box when he's not looking. Lastly, right before the meeting Bill sets the box down on his desk and leaves the office to take a phone call. While Bill's away, his coworkers steal half the remaining donuts. Bill comes back and brings the box into his meeting. How many donuts are left in the box?

Bill eats 2 donuts out of a box of 50 for 50-2=<<TOOL:calculator50-2TOOL>><<OBS48OBS>>48 donuts remaining. The secretary takes 4 more donuts out of the box, leaving 44 donuts remaining. Bills coworkers take half of the remaining donuts, leaving 44/2=<<TOOL:calculator44/2TOOL>><<OBS22OBS>>22 donuts remaining. <<TOOL:check_answer22TOOL>><<OBSTrueOBS>>

train_1279

A store is comparing their profits throughout the year. They had profits of $1,500 in the first quarter of the year, $3,000 in the third quarter, and $2,000 in the fourth quarter. If their annual profits are $8,000, how much profit, in dollars, did they make in the second quarter?

In the three quarters we have figures for, the store made a total of $1500 + $3000 + $2000 = $<<TOOL:calculator1500+3000+2000TOOL>><<OBS6500OBS>>6,500. Subtracting this from their annual profit shows that they made $8000 – $6500 = $<<TOOL:calculator8000-6500TOOL>><<OBS1500OBS>>1,500 profit in the second quarter. <<TOOL:check_answer1500TOOL>><<OBSTrueOBS>>

train_1280

Peter has 15 birds. 1/3 are ducks. The rest are chickens and require special feed that costs $2 per bird. How much does it cost to feed the chickens?

2/3 of the birds are chickens because 1 -(1/3)=2/3 He has 10 chickens because 15 x (2/3) =<<TOOL:calculator15*(2/3)TOOL>><<OBS10OBS>>10 It will cost $20 to feed them because 10 x 2=<<TOOL:calculator10*2TOOL>><<OBS20OBS>>20 <<TOOL:check_answer20TOOL>><<OBSTrueOBS>>

train_1281

To make a cherry pie, Veronica needs 3 pounds of pitted cherries. There are 80 single cherries in one pound of cherries. It takes 10 minutes to pit 20 cherries. How many hours will it take Veronica to pit all the cherries?

There are 80 cherries in a pound and she needs 3 pounds to make a pie so she needs 80*3 =<<TOOL:calculator80*3TOOL>><<OBS240OBS>>240 cherries It takes her 10 minutes to pit a unit of 20 cherries. She has 240/20 =<<TOOL:calculator240/20TOOL>><<OBS12OBS>>12 units of cherries to pit It takes 10 minutes to pit a unit of cherries and she has 12 units so it will take her 10*12 =<<TOOL:calculator10*12TOOL>><<OBS120OBS>>120 minutes 60 minutes are in 1 hour and it takes her 120 minutes so that’s 120/60 =<<TOOL:calculator120/60TOOL>><<OBS2OBS>>2 hours <<TOOL:check_answer2TOOL>><<OBSTrueOBS>>

train_1282

Jerry has three times as many stickers as George. George has 6 fewer stickers than his brother Fred. If Fred has 18 stickers, how many stickers does Jerry have?

George has 18 - 6 =<<TOOL:calculator18-6TOOL>><<OBS12OBS>>12 stickers. Jerry has 12 * 3 =<<TOOL:calculator12*3TOOL>><<OBS36OBS>>36 stickers. <<TOOL:check_answer36TOOL>><<OBSTrueOBS>>

train_1283

Moses and Tiffany want to see who is faster. But instead of a race, they just start running down the block. Tiffany runs 6 blocks in 3 minutes. Moses runs 12 blocks in 8 minutes. What is the speed (defined as blocks per minute) of the runner with the higher average speed?

Tiffany runs 2 blocks per minute because 6 / 3 =<<TOOL:calculator6/3TOOL>><<OBS2OBS>>2 Moses runs 1.5 blocks per minute because 12 / 8 =<<TOOL:calculator12/8TOOL>><<OBS1.5OBS>>1.5 The runner with the highest average speed is Tiffany because 2 > 1.5 <<TOOL:check_answer2TOOL>><<OBSTrueOBS>>

train_1284

A rectangular flowerbed in the city park is 4 meters wide. Its length is 1 meter less than twice its width. The government wants to fence the flowerbed. How many meters of fence are needed?

Twice the width is 4 x 2 =<<TOOL:calculator4*2TOOL>><<OBS8OBS>>8 meters. The length of the rectangular flowerbed is 8 - 1=<<TOOL:calculator8-1TOOL>><<OBS7OBS>>7 meters. Since the rectangular flower bed has 2 equal lengths, then it needs 7 x 2 =<<TOOL:calculator7*2TOOL>><<OBS14OBS>>14 meters of fence. The rectangular bed has also 2 equal widths, so it needs 4 x 2 =<<TOOL:calculator8TOOL>><<OBS8OBS>>8 meters of fence. Therefore, the rectangular flower bed needs a total of 14 + 8 =<<TOOL:calculator14+8TOOL>><<OBS22OBS>>22 meters of fence. <<TOOL:check_answer22TOOL>><<OBSTrueOBS>>

train_1285

Brendan went fishing with his dad. Brenden caught 8 fish in the morning. He threw 3 back that were too small. He caught 5 more in the afternoon. Brendan’s dad caught 13 fish. How many fish did they catch in all?

Brenden caught 8 fish in the morning + 5 in the afternoon =<<TOOL:calculator8+5TOOL>><<OBS13OBS>>13 fish. After throwing the small fish back, Brenden has 13 – 3 =<<TOOL:calculator13-3TOOL>><<OBS10OBS>>10 fish. Together, Brenden and his dad caught 10 + 13 =<<TOOL:calculator10+13TOOL>><<OBS23OBS>>23 fish. <<TOOL:check_answer23TOOL>><<OBSTrueOBS>>

train_1286

A child is making a 5-level pyramid by stacking some blocks. In the first row, he has 9 blocks. For the next rows, he has 2 less than the blocks he has from its bottom row. How many blocks did he use in all?

On the second row, he used 9 - 2 =<<TOOL:calculator9-2TOOL>><<OBS7OBS>>7 blocks. On the third row, he used 7 - 2 =<<TOOL:calculator7-2TOOL>><<OBS5OBS>>5 blocks. On the fourth row, he used 5 - 2 =<<TOOL:calculator5-2TOOL>><<OBS3OBS>>3 blocks. On the fifth row, he used 3 - 2 =<<TOOL:calculator3-2TOOL>><<OBS1OBS>>1 block. Therefore, he used a total of 9 + 7 + 5 + 3 + 1 =<<TOOL:calculator9+7+5+3+1TOOL>><<OBS25OBS>>25 blocks. <<TOOL:check_answer25TOOL>><<OBSTrueOBS>>

train_1287

If 60% of the students at school are girls and the number of boys is 300, how many girls are at the school?

Boys make up 100% - 60% = 40% of the total number of students. The total number of students at the school is 300 / (40/100) =<<TOOL:calculator300/(40/100)TOOL>><<OBS750OBS>>750 students. Since 60% of the students are female, there are (60/100) * 750 =<<TOOL:calculator60/100*750TOOL>><<OBS450OBS>>450 female students. <<TOOL:check_answer450TOOL>><<OBSTrueOBS>>

train_1288

Sheila, Purity, and Rose want to rent a house. Sheila has offered to pay five times Purity’s share of the rent. Rose can only afford thrice what Purity pays. If Rose’s share is $1,800, what is the total house rent?

Purity will pay a third of Rose's share, which translates to 1800/3 =<<TOOL:calculator1800/3TOOL>><<OBS600OBS>>600 dollars. Sheila has offered to pay 5 * 600 =<<TOOL:calculator5*600TOOL>><<OBS3000OBS>>3000 dollars Combining everyone’s share of the rent will give a total of 600 + 3000 + 1800 =<<TOOL:calculator600+3000+1800TOOL>><<OBS5400OBS>>5400 dollars <<TOOL:check_answer5400TOOL>><<OBSTrueOBS>>

train_1289

The building has 42 storage units that are a total of 5040 square feet. Twenty of the units are 8 by 4 feet each. If the remaining units are all the same size, what is the area, in square feet, for one of the remaining units?

8 * 4 =<<TOOL:calculator8*4TOOL>><<OBS32OBS>>32 square feet 20 * 32 =<<TOOL:calculator20*32TOOL>><<OBS640OBS>>640 square feet 5040 - 640 =<<TOOL:calculator5040-640TOOL>><<OBS4400OBS>>4400 square feet There are 42 - 20 =<<TOOL:calculator42-20TOOL>><<OBS22OBS>>22 remaining units 4400/22 =<<TOOL:calculator4400/22TOOL>><<OBS200OBS>>200 square feet One of the remaining units is 200 square feet. <<TOOL:check_answer200TOOL>><<OBSTrueOBS>>

train_1290

James catches 3 kinds of fish. He catches 200 pounds of trout, 50% more pounds of salmon, and twice as much Tuna. How many pounds of fish did he catch?

He caught 200*.55=100 pounds more salmon than trout So he caught 200+100=<<TOOL:calculator200+100TOOL>><<OBS300OBS>>300 pounds of salmon He caught 300*2=<<TOOL:calculator300*2TOOL>><<OBS600OBS>>600 pounds of tuna So in total, he caught 600+300+200=<<TOOL:calculator600+300+200TOOL>><<OBS1100OBS>>1100 pounds of fish <<TOOL:check_answer1100TOOL>><<OBSTrueOBS>>

train_1291

Harold had 100 marbles. He kept 20 marbles and shared the rest evenly among his 5 friends. How many marbles did each friend get?

Harold shared 100 - 20 =<<TOOL:calculator100-20TOOL>><<OBS80OBS>>80 marbles with his friends. Therefore, his 5 friends got 80/5 =<<TOOL:calculator80/5TOOL>><<OBS16OBS>>16 marbles each. <<TOOL:check_answer16TOOL>><<OBSTrueOBS>>

train_1292

John volunteers at a shelter twice a month for 3 hours at a time. How many hours does he volunteer per year?

He volunteers 2*12=<<TOOL:calculator2*12TOOL>><<OBS24OBS>>24 times a year So he volunteers for 24*3=<<TOOL:calculator24*3TOOL>><<OBS72OBS>>72 hours <<TOOL:check_answer72TOOL>><<OBSTrueOBS>>

train_1293

Hannah ran 9 kilometers on Monday. She ran 4816 meters on Wednesday and 2095 meters on Friday. How many meters farther did she run on Monday than Wednesday and Friday combined?

Wednesday + Friday = 4816 + 2095 =<<TOOL:calculator4816+2095TOOL>><<OBS6911OBS>>6911 meters 9 km =<<TOOL:calculator9*1000TOOL>><<OBS9000OBS>>9000 meters 9000 - 6911 =<<TOOL:calculator9000-6911TOOL>><<OBS2089OBS>>2089 meters Hannah ran 2089 meters farther on Monday than Wednesday and Friday. <<TOOL:check_answer2089TOOL>><<OBSTrueOBS>>

train_1294

There were some snowflakes at first. It snowed an additional 4 snowflakes every 5 minutes. If there were 58 snowflakes after 1 hour, how many snowflakes were there at first?

There are 60/5=<<TOOL:calculator60/5TOOL>><<OBS12OBS>>12 5-minute intervals in 1 hour. 12*4=<<TOOL:calculator12*4TOOL>><<OBS48OBS>>48 snowflakes fell in 1 hour. There were 58-48=<<TOOL:calculator58-48TOOL>><<OBS10OBS>>10 snowflakes at first. <<TOOL:check_answer10TOOL>><<OBSTrueOBS>>

train_1295

Hash has nine more than half as many toys as Bill has. If Bill has 60 toys, how many total toys do the boys have?

First we need to know what half of Bills toys are, 60 toys / 2 =<<TOOL:calculator60/2TOOL>><<OBS30OBS>>30 toys. Hash has 9 toys + 30 toys =<<TOOL:calculator9+30TOOL>><<OBS39OBS>>39 toys. Together the boys have 60 toys + 39 toys =<<TOOL:calculator60+39TOOL>><<OBS99OBS>>99 toys. <<TOOL:check_answer99TOOL>><<OBSTrueOBS>>

train_1296

Russel and Jen went to the circus. Jen played a shooting game twice, while Russel rode the carousel three times. If the shooting game costs 5 tickets and the carousel costs 3 tickets. How many tickets did they use?

Jen used 5 x 2 =<<TOOL:calculator5*2TOOL>><<OBS10OBS>>10 tickets in the shooting game. Russel used 3 x 3 =<<TOOL:calculator3*3TOOL>><<OBS9OBS>>9 tickets in the carousel. Therefore, they used 10 + 9 =<<TOOL:calculator10+9TOOL>><<OBS19OBS>>19 tickets in all. <<TOOL:check_answer19TOOL>><<OBSTrueOBS>>

train_1297

Cary is 72 inches tall. Her younger brother Bill is half her height, and her younger sister Jan is 6 inches taller than Bill. How tall is Jan?

First find Bill's height by dividing Cary's height by 2: 72 inches / 2 =<<TOOL:calculator72/2TOOL>><<OBS36OBS>>36 inches Then add six inches to find Jan's height: 36 inches + 6 inches =<<TOOL:calculator36+6TOOL>><<OBS42OBS>>42 inches <<TOOL:check_answer42TOOL>><<OBSTrueOBS>>

train_1298

Joe’s mother gave him $56 to go to the store. Joe bought 7 notebooks and 2 books. Each notebook costs $4 and each book costs $7. How much money does Joe have left?

7 notebooks cost 7 notebooks x $4/notebook = $<<TOOL:calculator7*4TOOL>><<OBS28OBS>>28 2 books cost 2 books x $7/book = $<<TOOL:calculator2*7TOOL>><<OBS14OBS>>14 In total Joe has spent $28 + $14 = $<<TOOL:calculator28+14TOOL>><<OBS42OBS>>42 He has $56 - $42 = $<<TOOL:calculator56-42TOOL>><<OBS14OBS>>14 left <<TOOL:check_answer14TOOL>><<OBSTrueOBS>>

train_1299