1+2=
3
2-2=
0
2x2=
4
2/2=
1
3+2=
5
5-3=
6x0=
6/2=
8+7=
15
7-3-
8x1=
8
8/4=
2
9+7=
16
9-7=
6x8=
48
12/2=
6
7+6=
13
7-4=
7x9=
63
25/5=
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