35-15
20
29+30
59
7+45
52
150-45
105
30+28
58
1x100
100
2x20
40
3x3
9
5x3
15
2x12
24
55+40
95
10x5
50
3x11
33
3x7
21
1x1,000
1,000
5x5
25
6x3
18
7x2
14
8x3
9x3
27
11x5
55
11x9
99
8x4
32
7x7
49
9x9
81