问题
解答题
用自己喜欢的方法计算
|
答案
(1)25×1.25×32,
=(25×4)×(1.25×8),
=100×10,
=1000;
(2)915×99+915,
=915×(99+1),
=915×100,
=91500;
(3)5.18-(1.18-0.25),
=5.18-1.18+0.25,
=4+0.25,
=4.25.
用自己喜欢的方法计算
|
(1)25×1.25×32,
=(25×4)×(1.25×8),
=100×10,
=1000;
(2)915×99+915,
=915×(99+1),
=915×100,
=91500;
(3)5.18-(1.18-0.25),
=5.18-1.18+0.25,
=4+0.25,
=4.25.