问题
解答题
|
答案
(1)25%×
×4,11 23
=(0.25×4)×
,11 23
=1×
,11 23
=
;11 23
(2)12.9×60%+87.1×
,3 5
=12.9×
+87.1×3 5
,3 5
=(12.9+87.1)×
,3 5
=100×
,3 5
=60;
(3)101×
-2 25
,2 25
=(101-1)×
,2 25
=100×
,2 25
=8;
(4)1.4-(1.5-80%×
),5 8
=1.4-(1.5-
×4 5
),5 8
=1.4-1,
=0.4.