Tutorial World Primary 1
 
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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