7 +
15 +
48 ×
28 +
9
11 +
40 ×
3 ÷
19 +
448×
5 -
19 +
72 ×
21 +
12 ×
2 -
8 -
6 ×
1 -
14 +
3 ÷
5 -
14 +
63 ×
17 +
8 ÷
72 ×
13 +
63 ×
15 +
6 +