Question

3-1=
4 2

7-7 =
3 4

5-1=
3

1-1+2=
8 3

Answer 1

3 - 1 = 2

7 - 7 = 0

5 - 1 = 4

1 - 1 + 2 = 0 + 2 = 2

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18/02/2016 
Sepauto - SSRC
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