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Add Within 100: Set 2

Add ones and tens to two-digit numbers.

Add ones

Write each sum.

1.

68 + 3 =  

2.

32 + 5 =  

3.

80 + 6 =  

4.

49 + 4 =  

5.

72 + 2 =  

6.

43 + 8 =  

Add tens

Write each sum.

7.

56 + 10 =  

8.

63 + 20 =  

9.

87 + 10 =  

10.

83 + 10 =  

11.

20 + 20 =  

Use the blocks

Write each sum.

12.
Use the blocks to help you add.


11 + 9 =  

13.
Use the blocks to help you add.


42 + 6 =  

14.
Use the blocks to help you add.


79 + 3 =