28 ×
4
7
6 ÷
6
1
12 ×
2
840×
5
3
8
15 ×
5
3
4 ÷
8
2
6
7
2 ÷
4
2 ÷
1
4 ×
1
4
21 ×
3
7
30 ×
5
6
8
2
126×
7
32 ×
8
4
3 ÷
3
1
2 ÷
2
30 ×
6
5
6
10 ×
2
7
7
192×
4
8
1
105×
5
3
3
5
10 ×
2
6
2 ÷
4
8
1
7
2
2
240×
1
5
168×
8
3
28 ×
4
7
24 ×
6
8
6
1
5
7
6 ×
3
2
4