20 +
144×
72 ×
27 +
2 ÷
12 +
480×
192×
6 +
1 -
4
7 -
10 +
1960×
1 -
45 ×
2 ×
12 +
192×
15 +
21 ×
19 +
45 ×
2 ×
21 +
72 ×
14 +
6 ÷
6 -
6
11 +