计算:(1)48÷3-1/2×12+24;(2)41/2-8.

问题描述:

计算:
(1)

48
÷
3
-
1
2
×
12
+
24

(2)4
1
2
-
8

(1)原式=

48÷3
-
1
2
×12
+2
6
=4-
6
+2
6
=4+
6

(2)原式=4×
2
2
-2
2
=2
2
-2
2
=0.