方法一:
(6+25)×6
=6x6+6x25
=36+150
=186。
方法二:
(6+25)×6
=31x6
=(30+1)x6
=30x6+1x6
=180+6
=186。
这道题可以最简便的就是把6+25=31
换算成30+1
那这道题就变成(30➕1)×6=30×6➕1×6
=180➕6=186
原式=6×6+25×6
=36+150
=186
(6+25)×6
=36+150
=186
=(30+1)x6
=30x6+1x64
=180+6
=186