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计算(1)0.5+(-14)-2.75+(-12)(2)10÷[12-(-1+113)]×6

2022-08-15 16:21:35 问答库 阅读 207 次

问题详情

计算
(1)0.5+(-1

4

)-2.75+(-1

2

)
(2)10÷[1

2

-(-1+11

3

)]×6
(3)-32÷(-3)2+3×(-2)+|-4|
(4)-13-(1-0.5)×1

3

×[3-(-3)2]
(5)-7×(-22

7

)+19×(-22

7

)-5×(-22

7

)
(6)-9916

17

×34.

参考答案

(1)原式=0.5-14-2.75-12
=0.5-12-14-2.75
=0-3
=-3;

(2)原式=10÷[12-13)×6
=10×6×6
=360;

(3)原式=-9÷9-6+4
=-1-6+4
=-7+4
=-3;

(4)原式=-1-12×13×[3-9]
=1-12×13×(-6)
=1+1
=2;

(5)原式=(-7+19-5)×(-227)
=7×(-227)
=-22;

(6)(-100+117)×34
=-100×34+117×34
=-3400+2
=-3398.

考点: