问题
解答题
计算: (1)(-
(2)
|
答案
(1)原式=-
-0.25+1 8
×6-1 2
×61 3
=-
-0.25+3-21 8
=-
+3-23 8
=
;5 8
(2)原式=-2-5+2-1
=-6.
计算: (1)(-
(2)
|
(1)原式=-
-0.25+1 8
×6-1 2
×61 3
=-
-0.25+3-21 8
=-
+3-23 8
=
;5 8
(2)原式=-2-5+2-1
=-6.