1x10
10
10-3
7
2+3
5
15÷3
9x3
27
20-5
15
17+13
30
10÷5
2
10x4
40
54-27
54+37
91
12÷4
3
11x5
55
79-31
48
102+35
137
120÷12
12x10
120
127-39
39
146+108
252
248÷124
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