Question

39乘以19分之14最简便怎么计算？

Answer 1

解：39×14/19
=(38+1)×14/19
=38×14/19+1×14/19
=28+14/19
=28又14/19

Answer 2

39*14/19
=(38+1)*14/19 乘法分配律来简便
=38*14/19+14/19
=28+14/19
=28又14/19

Answer 3

回答：
39×14/19
=（38+1）×14/19
=38×14/19+1×14/19
=28+14/19
=28又14/19
运用了乘法分配律

Answer 4

39x14/19
=(38+1)x14/19
=38x14/19+1x14/19
=28+14/19
=28又14/19