0.75×101-3/4(用简便方法运算)
问题描述:
0.75×101-3/4(用简便方法运算)
答
0.75x101-0.75
=0.75x101-0.75x1
=0.75x(101-1)
=0.75x100
=75
选我吧,1l只会拍马屁