Topic 11 Review

Barbie's friend is selling greeting cards. There are 5 cards in each pack. Each of her 3 aunts buys 4 packs of cards. What is the total number of cards his aunts buy?

Ensley Elementary School has 562 paper cups. Grade 3 uses 126 paper cups for a class project. Grade 2 uses 118 for a class picnic. Bette says that 113 + 288 = t total cups

are used in all and that 562 - 401 = t total cups are left. Is her answer reasonable?

• Yes, she found that the total used was 401 and subtracted from the initial number.

• No, she did the addition wrong and it should be 562 - 391 = t

Baby Shark has 439 erasers in his collection. His mother buys 18 new erasers for the family. She divides the new erasers equally among Tim and his 2 sisters. How many erasers does Tim have now?

What is the sum of 392, 104, and 211?

Hannah Montana needs 36 yards of ribbon for a craft project. The ribbon costs $5 a yard. She
spends $60 on ribbon. She wants to know how many more yards of ribbon she needs.
Which equation could she use first to solve this problem?

•  $c\ =60\div5$ 

•  $c\ =\ 60\ +\ 5$  

•  $y\ =\ 40\ -5$  

•  $y\ =\ 60\ \div12$  

Mr. Larson worked 4 days during the week. On each workday, he spent $6 on lunch. On Sunday, he spends $30 on lunch for his family. How much did he spend on lunches for one week?

Alice takes out the trash whenever it gets too full. She takes out the trash in the kitchen 7 times each month. She takes out the trash in her bedroom 2 times each month. How many times does she take out the trash in 2 months?

• 11

• 14

• 18

• 16

Meg wants to send her grandmother 120 letters. She sends 6 letters each month for 6 months. What is a good estimate for how many more letters Meg needs to send to reach

her goal?

• 70

• 75

• 80

• 90