7又4分之1+3.52+2.75+5.48 要求简便计算有过程
问题描述:
7又4分之1+3.52+2.75+5.48 要求简便计算有过程
答
7有4分之一等于7.25,然后,7.25+2.75=10,3.52+5.48=9,10+9=19
答
7又4分之1+3.52+2.75+5.48
=7.25+3.52+2.75+5.48
=(7.25+2.75)+(3.52+5.48)
=10+9=19
答
7又4分之1+3.52+2.75+5.48
=(7.25+2.75)+(3.52+5.48)
=10+9
=19