1:( )千克比100千克多30%.2:20千克比( )千克轻10%.3:50克比( )克少40% .4:( )米比5米长50%
问题描述:
1:( )千克比100千克多30%.2:20千克比( )千克轻10%.3:50克比( )克少40% .4:( )米比5米长50%
答
1:(130 )千克比100千克多30%.
2:20千克比(200/9 )千克轻10%.
3:50克比( 250/3)克少40% .
4:( 7.5)米比5米长50%