问题 解答题
计算:
(1)-24×(
1
2
+
2
3
-
5
6
)
;                
(2)-10+8÷(-2)2-(-4)×(-3)
答案

(1)原式=-24×(

1
2
+
2
3
-
5
6
),

=(-24)×

1
2
+(-24)×
2
3
-(-24)×
5
6

=-12-16+20,

=-28+20,

=-8;

(2)-10+8÷(-2)2-(-4)×(-3),

=-10+8÷4-12,

=-10+2-12,

=-20.

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