7
288×
4
60 ×
15 +
11 +
42 ×
15 +
48 ×
7
17 +
20 ×
9
2 -
13 +
18 ×
4 -
72 ×
7 ÷
14 +
36 ×
2 -
14 +
42 ×
2 -
21 +
18 ×
4 -
5 +
5
9 +
2 ÷
1 -
24 +