问题
解答题
计算题. 12-
12÷(
12÷[
|
答案
(1)12-
÷3 5
,2 3
=12-
×3 5
,3 2
=12-
,9 10
=11
;1 10
(2)12÷(
+3 5
),2 3
=12÷
,19 15
=12×
,15 19
=
;180 19
(3)12÷[
×(3 5
-1)],4 3
=12÷[
×3 5
],1 3
=12÷
,1 5
=12×5,
=60.