1x2
2
4+8
12
4-3
1
15:-5
3
2x4
8
12+5
17
5-5
0
30:-5
6
3x3
9
20+11
31
15-6
36:-6
4x5
20
40+10
50
20-9
11
56:-8
7
12x9
108
96+13
109
50-17
33
108:-9
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