18 ×
6
3
10 ×
5
2
4 ×
1
4
1
2 ÷
4
2
120×
5
6 ×
3
12 ×
6
12 ×
3
5 ÷
5
4
6
2
1
4
1
72 ×
6
3
30 ×
5
2
20 ×
5
2
1
4
6
15 ×
3
2
2 ÷
6
3
4 ÷
1
4
5