计算:(1)18-6÷(-2)×(-13).(2)23-18-(-13)+(-38)(3)(12-59+56-712)×(-36)(4)-14÷(-5)2×(-53)+|0.8-1|.-数学
题文
计算: (1)18-6÷(-2)×(-
(2)
(3)(
(4)-14÷(-5)2×(-
|
答案
(1)18-6÷(-2)×(-
=18-3×
=18-1 =17; (2)
=(
=1-
=
(3)(
=
|
题文
计算: (1)18-6÷(-2)×(-
(2)
(3)(
(4)-14÷(-5)2×(-
|
答案
(1)18-6÷(-2)×(-
=18-3×
=18-1 =17; (2)
=(
=1-
=
(3)(
=
|