Add Within 100: Set 1

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Add Within 100: Set 1

Add ones and tens to two-digit numbers.

Add ones

Write each sum.

1.

60 + 1 =

2.

52 + 9 =

3.

87 + 3 =

4.

59 + 7 =

5.

44 + 9 =

6.

46 + 5 =

Add tens

Write each sum.

7.

21 + 30 =

8.

29 + 20 =

9.

49 + 10 =

10.

41 + 40 =

11.

32 + 20 =

Use the blocks

Write each sum.

12.

Use the blocks to help you add.

13 + 4 =

13.

Use the blocks to help you add.

51 + 8 =

14.

Use the blocks to help you add.

31 + 2 =