168×
4
7
2
2
15 ×
1
3
210×
5
6
6
12 ×
4
3
6 ×
2
5
1
7
10 ×
5
2
30 ×
6
3
42 ×
1
7
2 ÷
4
3 ÷
1
3
5
4
4
56 ×
7
6
2
60 ×
2
6
49 ×
1
7
4
12 ×
3
5 ÷
5
21 ×
3
5
7
180×
6
2
4
1
7
4 ×
1
4
5
6
6 ×
2
3