15 +
140×
15 +
6 ×
10 +
6 ÷
5 -
19 +
7 ÷
13 +
160×
18 +
84 ×
8
4 -
17 +
24 ×
3 ÷
7 +
54 ×
20 +
4 ÷
17 +
4
9 ×
16 +
1 -
11 +
8 ÷
2 -
18 +
9
21 ×
3 -