4th Grade Integer Operations: Estimating & Parentheses

1. Sarah has 15 apples. She gives 7 apples to her friend. How many apples does she have left? (Estimate the difference)

• 12

• 10

• 8

• 6

2. A box contains 24 chocolates. If 9 chocolates are eaten, how many are left? (Use parentheses to show the calculation)

• 20

• 10

• 16

• 15

3. Tom has 5 packs of stickers. Each pack contains 8 stickers. How many stickers does he have in total? (Estimate the product)

• 48

• 56

• 32

• 40

4. There are 30 students in a class. If 12 students go on a field trip, how many students remain in the class? (Use parentheses in your expression)

• 25

• 15

• 18

• 20

5. A farmer has 50 oranges. He sells 23 oranges at the market. How many oranges does he have now? (Estimate the difference)

• 23

• 30

• 27

• 50

6. Lisa read 12 pages of a book on Monday and 15 pages on Tuesday. How many pages did she read in total? (Use parentheses to show the addition)

• 30

• 27

• 20

• 25

7. A baker made 48 cookies. He packed them into boxes of 6 cookies each. How many boxes did he fill? (Estimate the quotient)

• 12

• 10

• 8

• 6

8. There are 18 fish in a tank. If 5 fish are added, how many fish are in the tank now? (Use parentheses in your expression)

• 20

• 25

• 15

• 23

9. A library has 120 books. If 45 books are checked out, how many books are left in the library? (Estimate the difference)

• 65

• 75

• 90

• 80

10. A gardener planted 7 rows of flowers with 9 flowers in each row. How many flowers did he plant in total? (Use parentheses to show the multiplication)

• 63

• 54

• 81

• 72