15 +
17 +
13 +
1 -
8 +
64 ×
24 ×
11 +
42 ×
1 -
13 +
9 ÷
15 +
24 ×
5 -
12 +
17 +
336×
11 +
4 ÷
7 -
8 +
70 ×
12 +
4
15 +
36 ×
2 -
4 -
6 ×
3 -
1 -
21 ×
180×
14 +