4 × 3 =
3 + 3 + 3 + 3 = 12
4 + 4 + 4 = 12
5 × 4 =
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
×
1 2
0 2
2 2
24
84
65
25
30
144
1224