2
2
150×
5
42 ×
7
6
12 ×
3
4
1
1
3
2
2 ÷
4
3 ×
1
30 ×
5
6
126×
7
5
4 ÷
4
2
3
7 ÷
7
1
6
294×
7
1
3 ÷
6
2
20 ×
4
5
3
6
7
25 ×
1
5
24 ×
2
3
4
4 ÷
1
54 ×
3
5
24 ×
4
6
70 ×
7
2
4
6
3
14 ×
7
1
2
5