18 ×
3
6
1
2 ÷
4
2
140×
5
14 ×
7
15 ×
1
3
24 ×
4
30 ×
5
6
7
2
5
7
7
6
2 ÷
2
1
4
3
3
12 ×
2
28 ×
4
7
21 ×
3
30 ×
5
6
4 ÷
1
6
10 ×
2
5
7
21 ×
3
3 ÷
1
4
28 ×
4
5 ÷
5
2 ×
2
1
7
3
30 ×
6
7
1
2 ÷
3
6
8 ×
4
2
5