Question

46.72-(12.54+6.72+29.54)怎么巧算？

Answer 1

根据题意，这道数学题用到的简便计算方法是加法交换律和加法结合律，原式=46.72-6.72-（12.50+29.50）-0.08=40-42-0.08=-（2+0.08）=-2.08。

Answer 2

46.72-(12.54+6.72+29.54)＝46.72-12.54-6.72-29.54=(46.72-6.72)-(12.54+29.54)=40-42.08=-2.08

Answer 3

46.72-（12.54+6.72+29.54）=46.72-6.72-（12.54+29.54）=40-42.08=-2.08

Answer 4

46.72一（12.54十6.72十29.54）二（46.72一6.72））一（12.5十29.5）一（0.04十0.04）二40一42一0.04二一2.04

Answer 5

46.72-(12.54+6.72+29.54)
=46.72-6.72-(12.54+29.54)
=40-42.08
=-2.08