1 -
4 -
3969×
2
16 +
9
12 ×
40 ×
14 +
96 ×
12 +
3 ÷
504×
1
18 +
14 +
6
56 ×
14 +
168×
144×
14 +
5 -
8
72 ×
8
56 ×
135×
189×
2 ÷
9 +
5