问题
解答题
脱式计算: (
[1-(
|
答案
(1)(
-8 15
)÷ 3,1 5
=
÷3,1 3
=
;1 9
(2)[1-(
-1 2
)]×1 4
,2 3
=【1-
】×1 4
,2 3
=
×3 4
,2 3
=
.1 2
脱式计算: (
[1-(
|
(1)(
-8 15
)÷ 3,1 5
=
÷3,1 3
=
;1 9
(2)[1-(
-1 2
)]×1 4
,2 3
=【1-
】×1 4
,2 3
=
×3 4
,2 3
=
.1 2