题目内容

下面每题,怎样算简便就怎样算
36.8-6.8÷0.50.125×32×0.251.25×8.8
73÷4+2.7×0.253.75÷[0.3×(1.34-0.84)].
①36.8-6.8÷0.5,
=36.8-13.6,
=23.2;

②0.125×32×0.25,
=(0.125×8)×(4×0.25),
=1×1,
=1;

③1.25×8.8,
=1.25×(8+0.8),
=1.25×8+1.25×0.8,
=10+1,
=11;

④73÷4+2.7×0.25,
=73×
1
4
+2.7×0.25,
=(73+2.7)×0.25,
=75.7×0.25,
=18.925;

⑤3.75÷[0.3×(1.34-0.84)],
=3.75÷[0.3×0.5],
=3.75÷0.15,
=25.
练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网