236*81+236*19+236*31的简便算法
问题描述:
236*81+236*19+236*31的简便算法
答
提取公因式236,然后先进行加法运算,将结果与236再做乘法
236*81+236*19+236*31
=236*(81+19+31)
=236*131
=30916
答
236*81+236*19+236*31
=236*(81+19+31)
=236*(9*9+50)
=236*9*9+236*50
=30916
答
236*81+236*19+236*31
=236*(81+19+31)
=236*131
=30916