6.24*102又5分之4+25分之18*62.4—624

问题描述:

6.24*102又5分之4+25分之18*62.4—624

原式=6.24+102.8+0.72+62.4-624
=172.16-624
=-496.84

6.24×102又5分之4+25分之18×62.4-624
=6.24×(102又5分之4+25分之18×10100)
=6.24×(102.8+7.2-100)
=6.24×(110-100)
=6.24×10
=62.4

6.24*102又5分之4+25分之18*62.4—624
=6.24*102.8+0.72*10*6.24-100*6.24
=6.24*102.8+7.2*6.24-100*6.24
=6.24*(102.8+7.2-100)
=6.24*10
=62.4

6.24*102又5分之4+25分之18*62.4—624
=6.24*102又5分之4+25分之180*6.24—6.24*100
= 6.24*102又5分之4+7又5分之1*6.24—6.24*100
=6.24*(102又5分之4+7又5分之1—100)
=6.24*10
=62.4