问题
计算题
用简便方法计算下面各题。
|
答案
（1）原式=0.4×0.25×0.7
=0.1×0.7
=0.07
=0.75×100+0.75×2
=76.5
=10×2.5
=25
口语交际，情景问答题
搜题请搜索小程序“爱下问搜题”
用简便方法计算下面各题。
|
（1）原式=0.4×0.25×0.7
=0.1×0.7
=0.07
=0.75×100+0.75×2
=76.5
=10×2.5
=25