easy Set 9 Form Exercise
01
2 - 1 = ___
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1

02
5 - 4 = ___
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1

03
7 - 6 = ___
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1

04
9 - 1 = ___
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8

05
4 - 2 = ___
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2

06
8 - 2 = ___
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6

07
4 - 2 = ___
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2

08
9 - 8 = ___
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1

09
6 - 3 = ___
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3

10
4 - 2 = ___
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2

11
6 - 4 = ___
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2

12
7 - 5 = ___
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2

13
4 - 1 = ___
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3

14
2 - 1 = ___
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1

15
7 - 1 = ___
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6

16
7 - 5 = ___
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2

17
4 - 2 = ___
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2

18
6 - 4 = ___
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2

19
2 - 1 = ___
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1

20
8 - 3 = ___
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5