12 ×
3
4
2 ÷
1
10 ×
5
2
20 ×
4
6 ×
1
2
12 ×
3
5 ÷
5
5
2
3
4
1
6 ×
1
3
10 ×
5
2
12 ×
4
2
20 ×
5
4
1
3