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
答
(1)原式=
-
48÷3
+2
×121 2
=4-
6
+2
6
=4+
6
;
6
(2)原式=4×
-2
2
2
=2
2
-2
2
=0.
2