addition
72+28
100
23-19
4
4x4
16
4÷2
2
1527+578
2105
121+120
241
52-36
16
10x12
120
12÷2
6
1578-865
713
355+255
610
64-29
35
11x11
121
20÷10
2
150x4
600
435+365
800
89-52
37
12x12
144
100÷5
20
126÷3
42
1086+235
1321
1854-598
1256
20x20
400
152÷2
76
160÷5
32