Question

|

3	- 1 8

|-(

3	0.125

)3+

6.25

-|

3	1 27

-1|．

Answer 1

分析：先將各二次根式化為最簡(jiǎn)，然后去掉絕對(duì)值，繼而再合并同類二次根式即可得出答案．

解答：解：原式=|-

1

2

|-

1

8

+2.5-|

1

3

-1|
=

1

2

-

1

8

+

5

2

-

2

3

=3-

19

24

=

53

24

．

點(diǎn)評(píng)：此題考查了實(shí)數(shù)的運(yùn)算，解答本題的關(guān)鍵是熟練絕對(duì)值、零指數(shù)冪及負(fù)整數(shù)指數(shù)冪的運(yùn)算，屬于基礎(chǔ)題，難度一般．