Subtraction/Practice

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Fill in the answers.

1

10 - 7 =

2

3 - 2 =

3

1 - 1 =

4

6 - 5 =

5

3 - 3 =

6

11 - 10 =

7

20 - 10 =

8

30 - 20 =

9

50 - 30 =