20 ×
4
5
2 ÷
6
21 ×
3
14 ×
2
7
10 ×
1
168×
6
4
3
7
30 ×
1
5
2
1
1
7
12 ×
2
6
5
6 ×
3
12 ×
4
21 ×
7
1
140×
4
5 ÷
5
6
2
3
3
6 ×
2
7
1
28 ×
4
30 ×
6
5
10 ×
2
3
5
2 ÷
4
7
42 ×
1
6
5
6 ÷
6
1
2
12 ×
3
4
7