问题
解答题
|
答案
(1)12×(
+2 3
),1 6
=12×
+12×2 3
,1 6
=8+2,
=10;
(2)37×
,5 36
=(36+1)×
,5 36
=36×
+1×5 36
,5 36
=5+
,5 36
=5
;5 36
(3)
×7 10
÷5 16
,21 32
=
×7 32
,32 21
=
;1 3
(4)
×5 12
×7 25
,3 14
=
×7 60
,3 14
=
;1 40
(5)(
+7 8
)÷13 16
,13 16
=
×7 8
+16 13
×13 16
,16 13
=
+1,14 13
=2
;1 13
(6)
×7 13
+3 4
×3 4
,6 13
=(
+7 13
)×6 13
,3 4
=1×
,3 4
=
.3 4