divison
14/7
=2
7x3
=21
32-10
=22
17+7
=24
230+160
=390
66/11
=6
7x9
=63
77-53
=24
24+28
=52
176+107
=189
49/7
=7
9x8
=72
106-69
=37
99+78
=177
199+178
=377
144/12
=12
6x12
=72
132-43
=89
56+76
=132
666+121
=787
78/13
=6
8x13
=104
600-189
=411
87+87
=174
583+318
=901