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

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

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

7又4分之1+3.52+2.75+5.48
=(7.25+2.75)+(3.52+5.48)
=10+9
=19