问题
解答题
递等式计算: (7.5+2.5)×0.25 2.25×1.8+12.5×0.18 [1-(
|
答案
(1)(7.5+2.5)×0.25
=10×0.25
=2.5;
(2)2.25×1.8+12.5×0.18
=2.25×1.8+1.25×1.8
=(2.25+1.25)×1.8
=3.5×1.8
=6.3;
(3)[1-(
+1 2
)]×361 3
=[1-
]×365 6
=
×361 6
=6.