3x2
6
2+7
9
144/12
12
100-10
90
4x5
20
13+19
32
7/7
1
20-7
13
7x4
28
27+24
51
27/9
3
33-11
22
8x9
72
31+39
70
132/11
76-13
63
12x11
132
46+51
97
169/13
242-243
-1