3
15 +
12 +
1 -
6 ÷
7 +
7
8 ×
2 ÷
35 ×
11 +
5 -
3 ÷
30 ×
9 +
8 +
2 -
24 ×
10 +
2 ×
35 ×
6 +
3 -