18 +
30 ×
11 +
2 -
2 ÷
10 +
14 +
8 ×
112×
960×
10 +
48 ×
54 ×
4
5
14 ×
17 +
1 -
5 ÷
20 +
5 +
2 ÷
2 ÷
9 +
1
3 -