问题
解答题
下面各题,怎样简便就怎样算.
|
答案
(1)
÷5+8 13
×1 5 6 13
=
×8 13
+1 5
×1 5 6 13
=(
+8 13
)×6 13 1 5
=
×14 13 1 5
=
;2 13
(2)
×1 2
+2 5
÷9 10 9 20
=
+21 5
=2
.1 5
下面各题,怎样简便就怎样算.
|
(1)
÷5+8 13
×1 5 6 13
=
×8 13
+1 5
×1 5 6 13
=(
+8 13
)×6 13 1 5
=
×14 13 1 5
=
;2 13
(2)
×1 2
+2 5
÷9 10 9 20
=
+21 5
=2
.1 5