问题
解答题
怎么简便怎么算 (5.9+1.65)÷0.25 4÷(
0.6÷[
|
答案
(1)(5.9+1.65)÷0.25,
=7.55÷0.25,
=30.2;
(2)4÷(
+4 7
),4 5
=4÷(
+20 35
),28 35
=4÷
,48 35
=4×
,35 48
=
;35 12
(3)
×7 29
+3 8
×6 29
+7 12
×3 29
,7 9
=
×7 29
+3 8
×7 29
+6 12
×7 29
,3 9
=(
+3 8
+1 2
)×1 3
,7 29
=(
+9 24
+12 24
)×8 24
,7 29
=
×29 24
,7 29
=
.7 24