medium Set 1 Form Exercise
01
2 - 1 = ___
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1

02
6 - 2 = ___
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4

03
39 - 38 = ___
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1

04
68 - 24 = ___
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44

05
23 - 20 = ___
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3

06
66 - 21 = ___
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45

07
3 - 1 = ___
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2

08
56 - 3 = ___
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53

09
49 - 40 = ___
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9

10
48 - 31 = ___
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17

11
19 - 10 = ___
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9

12
94 - 14 = ___
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80

13
48 - 26 = ___
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22

14
40 - 30 = ___
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10

15
7 - 6 = ___
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1

16
94 - 64 = ___
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30

17
37 - 7 = ___
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30

18
81 - 70 = ___
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11

19
89 - 46 = ___
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43

20
17 - 15 = ___
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2