2+8
10
10+12
22
3+3
6
3-1
2
3+10
13
6+3
9
33+15
48
5+5
7-4
3
15+10
25
7+5
12
50+25
75
6+6
10-5
5
50-10
40
13+3
16
16+53
69
7+7
14
11-7
4
67-10
57
15+4
19
42+54
96
9+9
18
15-7
8
100-10
90
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