Name:_________________________ Date:_______________

Numbers To 40(10.1)

A. Fill in the blanks.

1. 15 + 8 = __________ 2. 28 - 12 = __________

3. 32 + 3 = __________ 4. 18 - 6 = __________

5. 33 - 17 = __________ 6. 25 + 10 = __________

7. 18 - 15 = __________ 8. 1 + 23 = __________

9. 20 - 15 = __________ 10. 16 + 20 = __________

B. Fill in the numbers.1. 10 and ___________ make 35.

2. 5 less than 21 is ___________.

3. 10 and ___________ make 40.

4. 3 more than 17 is __________.

5. 10 and 15 make ____________.

6. 20 and 10 make ____________.

7. ______ is between 24 and 26.

8. 37 is 10 and ______________.

9. _______ is between 29 and 31.

10. 28 is 8 and ______________.

C. Circle the largest number and cross out the smallest number.1. 7 , 32 , 29 , 12 , 20

2. 22 , 5 , 35 , 28 , 31

3. 14 , 7 , 40 , 24 , 33

4. 14 , 9 , 30 , 27 , 12

5. 20 , 17 , 23 , 37 , 3

D. Do these sums.

1. 16 2. 23 3. 20 4. 26 + 24 + 13 - 14 - 13 _____ _____ _____ _____

_____ _____ _____ _____

5. 18 6. 27 7. 9 8. 36 + 12 - 21 + 8 - 12 _____ _____ _____ _____

_____ _____ _____ _____

E. Solve the problems.

1. Kimberly borrowed 18 books from the library. 11 books were for her brother. How many books were for herself? ____________ books were for herself.

2. There were 36 grapes. Ali ate half of them. How many grapes were left? There were ____________ grapes left.

3. There were 15 sparrows on a tree. 13 more sparrows joined them on the same tree. How many sparrows were there altogether? There were ____________ sparrows altogether.

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