问题
解答题
递等式计算.
|
答案
(1)1224÷36×25-758,
=34×25-758,
=850-758,
=92;
(2)132.5-18÷7.5+7.6,
=132.5-2.4+7.6,
=130.1+7.6,
=137.7;
(3)12-
+2 7
÷1 7
,1 5
=12-
+2 7
,5 7
=11
+5 7
,5 7
=12
;3 7
(4)[
-(3 4
-7 16
)]×1 4
,8 9
=[
-3 4
]×3 16
,8 9
=
×9 16
,8 9
=
.1 2