试题:
计算:(1)
(2)﹣0.5+(﹣15)﹣(﹣17)﹣|﹣12|;
(3)
(4)﹣4×(﹣)﹣[×(﹣)﹣(﹣0.5)].

答案:

我来补答
解:(1)
=﹣﹣3
=﹣4
(2)﹣0.5+(﹣15)﹣(﹣17)﹣|﹣12|
=﹣0.5﹣15+17﹣12
=﹣27.5+17
=﹣10.5;
(3)
=3﹣40
=﹣37;
(4)﹣4×(﹣)﹣[×(﹣)﹣(﹣0.5)]
=﹣(﹣+
=+
=2+
=2
 
 
展开全文阅读
剩余:2000
这些题目你会做吗?