0.46X990+0.046简便

你好!原式等于0.46*(990+10)=460~回答完毕~~结果仅供参考~~\(^o^)/~祝学习进步~~~仅代表个人观点,不喜勿喷,谢谢.

0.46*990+0.046*100=0.46*990+0.46*10=0.46*(990+10)=0.46*1000=460

=0.46*9.9+0.46*0.1=0.46*(9.9+0.1)=0.46*10=4.6

原式等于0.46*(99+1)=46~回答完毕~~结果仅供参考~~\(^o^)/~祝学习进步~~~

0.46*10.1-0.046=0.46*10.1-0.46*0.1=0.46*(10.1-0.1)=0.46*10=4.6

0.46x0.9 +0.046=0.46*0.9+0.46*0.1=0.46*(0.9+0.1)=0.46*1=0.46

0.46*202=0.46*200+0.46*2=46*2+0.92=92+0.92=92.92

=0.46*(10.1-0.1)=0.46*10=4.6

原式=0.46x0.83+0.46x0.17=0.46x(0.83+0.17)=0.46x1=0.46供参考.