问题
解答题
脱式计算.(能简算的要简算) (1)
(2)36×
(3)(
|
答案
(1)
÷1 4
+1 3
÷2 3
,1 2
=
×3+1 4
×2,2 3
=
+3 4
,4 3
=2
;1 12
(2)36×
+24÷5 8
,8 5
=36×
+24×5 8
,5 8
=(36+24)×
,5 8
=60×
,5 8
=37
;1 2
(3)(
-3 4
)÷2 3
,5 12
=
×1 12
,12 5
=
.1 5