题目内容
计算:(1)(﹣2)×(﹣5)×0.1
(2)
(3)
(4)
.
(2)
(3)
(4)
解:(1)原式=10×0.1,
=1.
(2)原式=16÷(﹣8)﹣
,
=﹣2﹣
,
=﹣
.
(3)原式=
×30﹣
×30﹣
×30,
=15﹣25﹣﹣18,
=﹣28.
(4)原式=﹣16﹣
×(﹣4),
=﹣16+2,
=﹣14.
=1.
(2)原式=16÷(﹣8)﹣
=﹣2﹣
=﹣
(3)原式=
=15﹣25﹣﹣18,
=﹣28.
(4)原式=﹣16﹣
=﹣16+2,
=﹣14.
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