问题
解答题
计算下面各题:(能简便计算的要简便计算)
|
答案
(1)88×(
+3 8
),1 44
=88×
+88×3 8
,1 44
=33+2,
=35;
(2)
×10 21
×12 25
,7 8
=
×8 35
,7 8
=
;1 5
(3)
×23 25
+1 4
×1 4
,2 25
=(
+23 25
)×2 25
,1 4
=1×
,1 4
=
;1 4
(4)
×(3 4
-9 10
),5 6
=
×3 4
,1 15
=
;1 20
(5)
×14+14 15 14 15
=
×(14+1),14 15
=
×15,14 15
=14;
(6)4-
×8 25
,15 4
=4-
,6 5
=2
.4 5