Question

計(jì)算：20120+|-

1

4

|+

4

-2-2．

Answer 1

分析：分別根據(jù)0指數(shù)冪、負(fù)整數(shù)指數(shù)冪、算術(shù)平方及絕對(duì)值的性質(zhì)計(jì)算出各數(shù)，再根據(jù)實(shí)數(shù)混合運(yùn)算的法則進(jìn)行計(jì)算即可．

解答：解：原式=1+

1

4

+2-

1

4

=3．

點(diǎn)評(píng)：本題考查的是實(shí)數(shù)的運(yùn)算，熟知0指數(shù)冪、負(fù)整數(shù)指數(shù)冪、算術(shù)平方及絕對(duì)值的性質(zhì)是解答此題的關(guān)鍵．