简便计算:(1)4.56×0.27+4.56×0.63+0.456 (2)5.85+6.13+3.87-1.85 (3)12.5×5.7×8-5.7×90
问题描述:
简便计算:(1)4.56×0.27+4.56×0.63+0.456 (2)5.85+6.13+3.87-1.85 (3)12.5×5.7×8-5.7×90
答
简便计算:(1)4.56×0.27+4.56×0.63+0.456 (2)5.85+6.13+3.87-1.85 (3)12.5×5.7×8-5.7×90