题目内容
计算
(1)
;
(2)(
)×(﹣36);
(3)
;
(4)
.
(1)
(2)(
(3)
(4)
解:
(1)
=9﹣6﹣
﹣
=9﹣6﹣5
=﹣2;
(2)(
)×(﹣36)
=﹣(
×36﹣
×36+
×36)
=﹣(12﹣27+6)
=9;(3)
=﹣
+
﹣
=﹣
﹣
=﹣
;
(4)
=﹣9×
×
﹣(1﹣8)
=﹣6+7
=1.
(1)
=9﹣6﹣
=9﹣6﹣5
=﹣2;
(2)(
=﹣(
=﹣(12﹣27+6)
=9;(3)
=﹣
=﹣
=﹣
(4)
=﹣9×
=﹣6+7
=1.
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