easy Set 4 Form Exercise
01
2 - 1 = ___
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1

02
7 - 4 = ___
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3

03
3 - 2 = ___
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1

04
7 - 3 = ___
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4

05
9 - 3 = ___
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6

06
6 - 2 = ___
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4

07
9 - 7 = ___
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2

08
7 - 2 = ___
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5

09
3 - 2 = ___
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1

10
6 - 2 = ___
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4

11
2 - 1 = ___
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1

12
2 - 1 = ___
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1

13
6 - 5 = ___
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1

14
6 - 1 = ___
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5

15
8 - 4 = ___
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4

16
2 - 1 = ___
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1

17
6 - 5 = ___
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1

18
3 - 1 = ___
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2

19
9 - 1 = ___
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8

20
5 - 3 = ___
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2