Add Within 100: Set 10

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Add Within 100: Set 10

Add ones and tens to two-digit numbers.

Add ones

Write each sum.

1.

50 + 9 =

2.

65 + 8 =

3.

46 + 5 =

4.

26 + 1 =

5.

12 + 9 =

6.

83 + 2 =

Add tens

Write each sum.

7.

41 + 20 =

8.

45 + 50 =

9.

33 + 50 =

10.

84 + 10 =

11.

41 + 40 =

Use the blocks

Write each sum.

12.

Use the blocks to help you add.

46 + 5 =

13.

Use the blocks to help you add.

31 + 4 =

14.

Use the blocks to help you add.

37 + 5 =