问题
解答题
计算: (1)-24×(
(2)-10+8÷(-2)2-(-4)×(-3) |
答案
(1)原式=-24×(
+1 2
-2 3
),5 6
=(-24)×
+(-24)×1 2
-(-24)×2 3
,5 6
=-12-16+20,
=-28+20,
=-8;
(2)-10+8÷(-2)2-(-4)×(-3),
=-10+8÷4-12,
=-10+2-12,
=-20.
计算: (1)-24×(
(2)-10+8÷(-2)2-(-4)×(-3) |
(1)原式=-24×(
+1 2
-2 3
),5 6
=(-24)×
+(-24)×1 2
-(-24)×2 3
,5 6
=-12-16+20,
=-28+20,
=-8;
(2)-10+8÷(-2)2-(-4)×(-3),
=-10+8÷4-12,
=-10+2-12,
=-20.