6 ×
3
1
2
4
4
10 ×
5
5 ×
5
4 ÷
4
1
15 ×
3
2
1
6 ×
2
3
5
12 ×
4
2 ÷
2
15 ×
5
4 ÷
4
1
3
4
3
10 ×
5
2
1
1