6.18*9.9+6.18怎么列简算算式?
问题描述:
6.18*9.9+6.18怎么列简算算式?
答
6.18*9.9+6.18
=6.18*(10-0.1)+6.18
=61.8+6.18-0.618
=67.98-0.618
=67.362