easy Set 9 Form Exercise
01
4 - 3 = ___
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1

02
7 - 3 = ___
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4

03
4 - 3 = ___
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1

04
2 - 1 = ___
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1

05
2 - 1 = ___
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1

06
8 - 7 = ___
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1

07
8 - 2 = ___
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6

08
4 - 2 = ___
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2

09
5 - 1 = ___
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4

10
8 - 4 = ___
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4

11
3 - 1 = ___
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2

12
7 - 3 = ___
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4

13
3 - 1 = ___
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2

14
2 - 1 = ___
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1

15
7 - 6 = ___
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1

16
3 - 2 = ___
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1

17
6 - 5 = ___
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1

18
3 - 2 = ___
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1

19
2 - 1 = ___
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1

20
2 - 1 = ___
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1