44*73*27的简便计算?
问题描述：
44*73*27的简便计算?
答
44*73*27
=4*11*73*3*9
=4*73*3*99
=4*73*3*(100-1)
=(300-8)*3*(100-1)
=100*( 900-24) -( 900-24)
=90000-100*(9+24)+24
=90000-3300+24
=86724
答
44*73*27
=44×(100-27)×27
=4×11×(2700-27²)
=4×11×2700-4×11×729
=(10+1)×10800-(10+1)×2916
=108000+10800-29160-2916
=86724