Multiplying by 10
4 x 10
40
2 x 100
200
4 x 2
8
4/4
12/6
2
5 x 60
300
7 x 100
700
5 x 3
15
16/4
4
24/6
4
9 x 80
720
100 x 100
10 000
6 x 5
30
28/4
7
36/6
6
40 x 60
2400
200 x 400
80 000
7 x 8
56
36/4
9
48/6
8
70 x 80
5600
900 x 600
360 000
9 x8
72
44/4
11
54/6
9