easy Set 1 Form Exercise
01
5 - 1 = ___
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4

02
4 - 2 = ___
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2

03
9 - 5 = ___
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4

04
14 - 4 = ___
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10

05
15 - 4 = ___
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11

06
18 - 12 = ___
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6

07
12 - 10 = ___
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2

08
17 - 2 = ___
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15

09
17 - 10 = ___
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7

10
15 - 1 = ___
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14

11
6 - 5 = ___
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1

12
9 - 6 = ___
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3

13
6 - 1 = ___
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5

14
5 - 4 = ___
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1

15
4 - 2 = ___
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2

16
15 - 10 = ___
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5

17
3 - 2 = ___
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1

18
4 - 1 = ___
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3

19
4 - 1 = ___
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3

20
16 - 10 = ___
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6