38.46 +2.77- 38.46+ 2.77
巧算一道难题,求解!
第1个回答 2018-04-19
38.46 +2.77- 38.46+ 2.77
=(38.46-38.46)+2.77+2.77
=5.54本回答被提问者采纳
=(38.46-38.46)+2.77+2.77
=5.54本回答被提问者采纳
第2个回答 2018-04-19
原式
=(38.46-38.46)+(2.77+2.77)
=0+5.54
=5.54
=(38.46-38.46)+(2.77+2.77)
=0+5.54
=5.54
第3个回答 2018-04-19
38.46 +2.77- 38.46+ 2.77
=(38.46-38.46)+(2.77×2)
=0+5.54
=5.54本回答被网友采纳
=(38.46-38.46)+(2.77×2)
=0+5.54
=5.54本回答被网友采纳