1
1
20 ×
4
5
6 ×
2
3
6
6
3 ÷
2
72 ×
6
3
4
5 ÷
5
1
6
18 ×
3
5 ÷
1
5
8 ×
2
4
3
2
4 ×
4
1
30 ×
6
5
20 ×
5
6 ×
1
6
2 ÷
3
12 ×
4
2
2
4
10 ×
5
2
6
1
3