15 ×
5
4 ÷
4
1
18 ×
3
6
14 ×
2
7
3
6 ×
1
42 ×
6
7
2 ÷
4
10 ×
5
2
7
7
6
3
3
30 ×
5
2
4 ÷
4
1
2 ÷
2
10 ×
5
28 ×
4
6
7 ×
7
1
15 ×
3
4
2
7
2 ÷
1
2 ÷
3
6
5
18 ×
6
3
5
5
2
1
1
28 ×
7
4
1
14 ×
7
2
20 ×
4
5
2 ÷
3
6