20 ×
5
3 ×
1
3
4 ÷
8
2
168×
4
6
7
135×
9
4
9
9
6 ÷
1
6
63 ×
7
48 ×
3
8
2
5
63 ×
7
64 ×
8
2
4
9
42 ×
6
20 ×
5
18 ×
1
3
9
3 ÷
2
40 ×
8
315×
5
72 ×
1
7
4
3
6
6 ×
2
6
5
7
8
9
3
3
2 ÷
4
4 ÷
1
3
840×
7
6
9
5 ÷
5
1
14 ×
2
8
4
8 ÷
1
5
4
6 ×
3
192×
6
8
7
18 ×
9
2
8
27 ×
3
9
2
4
5 ÷
5
1
336×
6
7
24 ×
6
4
21 ×
7
1
3
90 ×
2
9
5
8