20 +
19 +
486×
8 +
10 +
6 ×
8 ×
11 +
24 ×
4 -
13 +
2 ÷
11 +
294×
5 ÷
18 +
12 ×
20 ×
9
40 ×
21 +
90 ×
5 -
12 +
3 -
4 -
42 ×
168×
12 +
560×
9
12 ×
9 +