21 ×
3 -
12 ×
9
3 -
11 +
4 ÷
27 ×
13 +
7
15 +
2 ÷
3 -
56 ×
2 ÷
13 +
4 +
42 ×
7 -
15 +
7 ÷
32 ×
14 +
21 ×
22 +
1
18 +
504×
14 +
84 ×
3 ÷
6 -
40 ×
3
42 ×
14 +
7 +