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计算:(1)734-5411-314-6711+914+214(2)(-0.5)÷156×(

2022-08-15 16:11:17 问答库 阅读 207 次

问题详情

计算:
(1)73

4

-54

11

-31

4

-67

11

+91

4

+21

4


(2)(-0.5)÷15

6

×(-11)
(3)-7×5

4

+(-5)×(-5

4

)-2

5


(4)(2

3

-11

12

-14

15

)×(-60)
(5)-32-1

3

×[(-5)2×(-3

5

)-240÷(-4)×1

4

].

参考答案

(1)734-5411-314-6711+914+214
=(734-314+914+214)-(5411+6711)
=16-12
=4;

(2)(-0.5)÷156×(-11)
=12×611×(-11)
=-3;

(3)-7×54+(-5)×(-54)-25
=(-7+5)×54-25
=(-2)×54-25
=-52-25
=-2910;

(4)(23-1112-1415)×(-60)
=-23×60+1112×60+1415×60
=-40+55+56
=71;

(5)-32-13×[(-5)2×(-35)-240÷(-4)×14]
=-9-13×[25×(-35)+60×14]
=-9-13×[-15+15]
=-9-13×0
=-9-0
=-9.

考点: