Subtracting
15-8
what is 7
36 / 6
what is 6
5 x 2
what is 10
57-32
what is 34
56 / 8
16 x 3
231-91
what is 140
56+34
144 / 12
what is 12
56 x 12
what is 672
1,829-278
what is 1,551
what is 265
2,211 / 737
what is 3
456 x 2
what is 912
35,684-4,572
what is 31,112
528+365
what is 893
6,221 / 2
what is 3617
893 x 10
what is 8930