问题
解答题
计算: (1)(2
(2)
|
答案
(1)原式=2
÷48
-36
÷27 6
=2
-38 9 2
=2×2
-2 9 2 2
=4
-2 9 2 2
=-1 2
;2
(2)原式=
-48
-(5-3)18
=4
-33
-2.2
计算: (1)(2
(2)
|
(1)原式=2
÷48
-36
÷27 6
=2
-38 9 2
=2×2
-2 9 2 2
=4
-2 9 2 2
=-1 2
;2
(2)原式=
-48
-(5-3)18
=4
-33
-2.2