Caleb has 3 dozen jellybeans. Sophie has half as many jellybeans as Caleb. How many jellybeans do they have in total?

How many jellybeans does Caleb have? ** Caleb has 3 x 12 =

<<3*12=36>>36 jellybeans. How many jellybeans does Sophie have? ** Sophie has 36 / 2 = <<36/2=18>>18 jellybeans. How many jellybeans do they have in total? ** Together, they have 36 + 18 = <<36+18=54>>54 jellybeans. #### 54 Tonya has opened a lemonade stand selling lemonade in small, medium, and large cups at $1, $2 and $3 respectively. At the close of business she ended up making $50. As she went back through her inventory she noticed that she sold $11 worth of small lemonades and $24 worth of medium lemonades. How many cups of large lemonade did Tonya sell? How many cups of small and medium lemonades did Tonya sell? ** 1. Tonya sold $11 worth of small lemonades and $24 worth of medium lemonades which makes $11 + $24= $<<11+24=35>>35 for small and medium lemonades. How many cups of large lemonades did Tonya sell? ** 2. Tonya made a total of $50. If she made $35 selling the two smaller sizes and she sold three sizes in all then $50-$35= $<<50-35=15>>15 worth of large lemonades. How many cups of large lemonade did Tonya sell? ** 3. The large lemonades sold for $3 each and Tonya sold $15 worth of large lemonades which means she sold $15/$3=<<15/3=5>>5 large cups of lemonade. #### 5 Albert wants a paintbrush that costs $1.50, a set of paints that costs $4.35, and a wooden easel that costs $12.65. Albert already has $6.50. How much more money does Albert need? How much does the paintbrush, the paints, and the wooden easel cost in total? ** The total cost of the paintbrush, the paints, and the wooden easel is $1.50 + $4.35 + $12.65 = $<<1.5+4.35+12.65=18.50>>18.50. How much more money does Albert need? ** Albert needs $18.50 − $6.50 = $12 more. #### 12 Frank goes to the store to buy some food. He buys 5 chocolate bars and 2 bags of chips. He hands the cashier $20 and gets $4 back as change. If the chocolate bars each cost $2, how much did each bag of chips cost? How much did Frank spend? ** His entire purchase cost $20 - $4 = $<<20-4=16>>16. How much did the chocolate bars cost? ** The chocolate bars cost 5 * $2 = $<<5*2=10>>10. How much did the bags of chips cost? ** The bags of chips cost a total of $16 - $10 = $<<16-10=6>>6. How much did each bag of chips cost? ** Each bag of chips cost $6 / 2 = $<<6/2=3>>3. #### 3 Marnie opens a bag of chips and eats 5 of them to see if she likes them. She does, so she eats 5 more. The bag has 100 chips in it and starting on the second day she has them, Marnie eats 10 each day. How many days does it take for Marnie to eat the whole bag of chips? How many chips did Marnie eat? ** Marnie has already eaten 5 of the chips + 5 more = <<5+5=10>>10 chips Marnie ate. How many chips are left? ** The bag has 100 chips in it and Marnie has only eaten 10, 100 - 10 = <<100-10=90>>90 chips left. How many days does it take for Marnie to eat the whole bag of chips? ** If Marnie eats 10 chips a day starting from the second day she has them, it will take her 90 chips in the bag / 10 chips Marine eats a day = <<90/10=9>>9 days to eat the whole bag. How many days does it take for Marnie to eat the whole bag of chips? ** However, Marnie also ate chips on the first day she bought them, so 9 + 1 = <<9+1=10>>10 days to eat the whole bag. #### 10 Sol sells candy bars to raise money for her softball team. On the first day, she sells ten candy bars and sells four more candy bars than she sold the previous day each day afterward. If she sells six days a week and each candy bar costs 10 cents, how much will she earn in a week in dollars? How many candies will Sol sell on the second day? ** Sol will sell 10 + 4 = <<10+4=14>>14 candies on the second day. How many candies will Sol sell on the third day? ** She will sell 14 + 4 = <<14+4=18>>18 candies on the third day. How many candies will Sol sell on the fourth day? ** She will sell 18 + 4 = <<18+4=22>>22 candies on the fourth day. How many candies will Sol sell on the fifth day? ** She will sell 22 + 4 = <<22+4=26>>26 candies on the fifth day. How many candies will Sol sell on the sixth day? ** She will sell 26 + 4 = <<26+4=30>>30 candies on the sixth day. How many candies will Sol sell in a week? ** She will sell a total of 10 + 14 + 18 + 22 + 26 + 30 = <<10+14+18+22+26+30=120>>120 candies in a week. How much will she earn in a week in dollars? ** Hence, she will earn 120 x 10 = <<120*10=1200>>1200 cents. How much will she earn in a week in dollars? ** Since 1 dollar is equal to 100 cents, then Sol will earn 1200/100 = $<<1200/100=12>>12 #### 12 The Science museum sells dinosaur models for $100 each. A certain school bought 2 models for the kindergarten library and also bought twice as many for the elementary library. Since the school bought more than 5 models, there was a 5% reduction in price for each model. How much did the school pay in all? How many models did the school buy for the elementary library? ** The school bought 2 x 2 = <<2*2=4>>4 dinosaur models for the elementary library. How many models did the school buy in total? ** So the school bought a total of 2 + 4 = <<2+4=6>>6 models. How much was the price of each model reduced by? ** The price of each model was reduced by $100 x 5/100 = $<<100*5/100=5>>5. How much did each model cost? ** Thus, each model cost $100 - $5 = $<<100-5=95>>95. How much did the school pay in all? ** Therefore, the school paid a total of $95 x 6 = $<<95*6=570>>570. #### 570 Andrew's dog has 12 burrs and six times as many ticks as burrs. How many foreign objects total are caught in the dog's fur? How many ticks are caught in the dog's fur? ** First find how many burrs are caught in the dog's fur: 12 burrs * 6 ticks/burr = <<12*6=72>>72 ticks How many foreign objects total are caught in the dog's fur? ** Then add the number of burrs to find the total number objects: 72 objects + 12 objects = <<72+12=84>>84 objects #### 84 Ned opens a left-handed store. He sells left-handed mice. They cost 30% more than normal mice. He sells 25 a day and his store is open every day except Sunday, Thursday, and Friday. If normal mice cost $120 how much money does he make a week? How much more do left-handed mice cost than right-handed ones? ** The left-hand mice cost 120*.3=$<<120*.3=36>>36 more than right-handed ones How much do left-handed mice cost? ** So they cost 120+36=$<<120+36=156>>156 How much money does he make a day? ** So he makes 156*25=$<<156*25=3900>>3900 a day How many days is the store open? ** The store is open 7-3=<<7-3=4>>4 days a week How much money does he make in a week? ** So in a week, he makes 3900*4=$<<3900*4=15600>>15,600 #### 15600 It takes Matt 2 minutes per problem to do his math homework with a calculator and 5 minutes per problem without a calculator. If Matt's assignment has 20 problems, how much time will using a calculator save? How many minutes does it take Matt to do his math homework without a calculator? ** First find the time difference per problem: 5 minutes/problem - 2 minutes/problem = <<5-2=3>>3 minutes/problem How many minutes does it take Matt to do his math homework without a calculator? ** Then multiply that number by the number of problems to find the total time difference: 3 minutes/problem * 20 problems = <<3*20=60>>60 minutes #### 60