20+60
80
61-47
14
53x4
212
999+1,266
90-72
18
62x3
186
9+10
19
50-37
13
52x3
156
33+52+86
171
6-9
-3
68x3
204
734+37
771
1-1
0
91x3
273
0 divided by 0
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