medium Set 2 Form Exercise
01
17 - 13 = ___
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4

02
12 - 1 = ___
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11

03
19 - 16 = ___
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3

04
4 - 2 = ___
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2

05
18 - 3 = ___
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15

06
14 - 12 = ___
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2

07
4 - 2 = ___
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2

08
2 - 1 = ___
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1

09
7 - 4 = ___
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3

10
18 - 16 = ___
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2

11
16 - 15 = ___
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1

12
19 - 13 = ___
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6

13
19 - 14 = ___
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5

14
4 - 2 = ___
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2

15
4 - 3 = ___
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1

16
12 - 2 = ___
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10

17
9 - 8 = ___
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1

18
8 - 1 = ___
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7

19
11 - 1 = ___
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10

20
5 - 4 = ___
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1