2+2
4
24-3
21
22+33
55
1x9
9
0x99
0
3+4
7
10-5
57+21
78
0x3
1x74
74
4+8
12
37-7
30
63+34
97
5x4
20
2x43
86
6+3
91-4
87
59+18
77
9x6
5x24
120
8+9
17
47-9
77+33
110
8x7
56
9x97
873