题目内容
计算题: (1)﹣23+(+58)﹣(﹣5)
(2)
(3)
(4)
(5)
(2)
(3)
(4)
(5)
解:(1)﹣23+(+58)﹣(﹣5),
=﹣23+58+5,
=﹣23+63,
=40;
(2)
,
=
+4×(﹣3),
=﹣2﹣12,
=﹣14;
(3)
,
=(
)×(﹣36),
=﹣18﹣30+21,
=﹣27;
(4)
,
=﹣81×
,
=﹣576;
(5)
,
=﹣
,
=18.
=﹣23+58+5,
=﹣23+63,
=40;
(2)
=
=﹣2﹣12,
=﹣14;
(3)
=(
=﹣18﹣30+21,
=﹣27;
(4)
=﹣81×
=﹣576;
(5)
=﹣
=18.
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