156+78x1983+22x1985用乘法分配律怎么算

Question

如题所述

Answer 1

156+78*1983+22*（1983+2）=156+78*1983+22*1983+22*2=156+44+1983*（78+22）= 198500 望采纳

Answer 2

156+78x1983+22x1985
=78×2+78×1983+22×1985
=78×（2+1983）+22×1985
=78×1985+22×1985
=（78+22）×1985
=100×1985
=198500

Answer 3

156+78x1983+22x1985
=78×2+78×1983+22×1985
=78×（2+1983）+22×1985
=78×1985+22×1985
=（78+22）×1985
=100×1985
=198500本回答被网友采纳