84 ×
6
15 ×
11 +
1
2 ×
30 ×
1 -
15 ×
10 +
7 +
7 ÷
14 ×
3 -
3 ×
21 ×
11 +
12 ×
3 -
15 ×
3 -
5
18 ×
2
7 ÷
24 ×