4. D =
5. E = (
6. F F
3
8. H =
9. I =
+
8
15
14
25
7. G = −8
7
6
÷
2
7
15
1
:
8
73
43
-2
5
·| •
x (3 +
8
5
9
5 2
- +
4 3
4
÷
6
พ