49.8*2.73+2.73*50.3+0.273=?要有计算过程,简便计算.

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49.8*2.73+2.73*50.3+0.273=?要有计算过程,简便计算.
49.8*2.73+2.73*50.3+0.273=?
要有计算过程,简便计算.

49.8*2.73+2.73*50.3+0.273=?要有计算过程,简便计算.
49.8×2.73+2.73×50.3-0.273
=49.82.73+2.73×50.3-2.73×0.1
=2.73×(49.8+50.3-0.1)
=2.73×100
=273

49.8*2.73+2.73*50.3-0.273
=49.8*2.73+2.73*50.3-2.73*0.1
=2.73*(49.8+50.3-0.1)
=2.73*100
=273.