medium Set 7 Form Exercise
01
1 + 2 = ___
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3

02
14 - 4 = ___
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10

03
11 + 1 = ___
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12

04
5 - 2 = ___
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3

05
20 - 1 = ___
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19

06
17 + 3 = ___
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20

07
11 - 6 = ___
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5

08
8 + 7 = ___
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15

09
2 - 1 = ___
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1