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