15 ×
3
5
12 ×
6
2
5 ÷
1
28 ×
4
7
21 ×
7
3
2 ÷
2
28 ×
4
5
6
6
4 ÷
1
5 ÷
5
3 ÷
6
1
7
6 ×
3
2
4
1
2
24 ×
4
6
21 ×
7
3
5
5
24 ×
6
28 ×
4
35 ×
7
5
12 ×
2
1
1
3
3
4
7
15 ×
3
1
6
10 ×
5
2
2 ÷
2
1
5
12 ×
3
4
42 ×
7
6