问题
解答题
计算下面各题.(能简算的要简算). (1)
(2)
|
答案
(1)
×40%+3 4
×60%,3 4
=
×(40%+60%),3 4
=
×1,3 4
=
;3 4
(2)
×5 8
×80%,1 9
=
×5 8
×8 10
,1 9
=
×1 2
,1 9
=
.1 18
计算下面各题.(能简算的要简算). (1)
(2)
|
(1)
×40%+3 4
×60%,3 4
=
×(40%+60%),3 4
=
×1,3 4
=
;3 4
(2)
×5 8
×80%,1 9
=
×5 8
×8 10
,1 9
=
×1 2
,1 9
=
.1 18