1. 6.O8x0.6十6.O8X0.3十6.O8x0.1怎么简便计算
简便计算6.08x0.6十6.08X0.3十6.08x0.1=6.08×（0.6+0.3+0.1）=6.08×1=6.08
2. 108×98+216的简便计算
对数字要敏感，216=108×2原式=108×98+108×2=108×(98+2)=108×100=10800