问题
解答题
计算下面各题.
(
(
|
答案
(1)
×3 8
×8,1 9
=
×8×3 8
,1 9
=3×
,1 9
=
;1 3
(2)(
×15 9
)×4 17
,17 12
=
×(15 9
×4 17
),17 12
=
×5 3
,1 3
=
;5 9
(3)(
+5 6
)×42,4 7
=
×42+5 6
×42,4 7
=35+24,
=59.
计算下面各题.
(
(
|
(1)
×3 8
×8,1 9
=
×8×3 8
,1 9
=3×
,1 9
=
;1 3
(2)(
×15 9
)×4 17
,17 12
=
×(15 9
×4 17
),17 12
=
×5 3
,1 3
=
;5 9
(3)(
+5 6
)×42,4 7
=
×42+5 6
×42,4 7
=35+24,
=59.