3×1
3
4x1
4
3+6
9
5x1
5
10×3
30
2x3
6
4x2
8
5+5+5+5
20
2x5
10
10x8
80
3x4
12
4x7
28
6 + 4 =
5 x 4
10x9
90
3x9
27
8X4
32
18+18
36
9 x 5
45
10x?=40
3x6
18
4x9
10 + ___ = 31
21
5 x ? =65
13
10x10
100
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