简便计算
666✘667+ 222✘999
=666x667+222x3x333
=666x(667+333)
=666x1000
=666000
先拿6672,二2x999再乘666。就这样就对了,记得给好评。好评记得没?
666×667+222×999
=666×667+222×(3×333)
=666×667+(222×3)×333
=666×667+666×333
=666×(667+333)
=666×1000
=666000
简便计算过程方法如下
解:666×667+222×999
=666x667+222x3x333
=666x(667+333)
=666x1000
=666000