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