1/100＋2/100＋3/100＋4/100.＋97/100＋98/100＋99/100 用简便方法计算

学习时间:2026-03-30 15:47:10 阅读：3196

1/100＋2/100＋3/100＋4/100.＋97/100＋98/100＋99/100 用简便方法计算明天就要

健忘的高山

2026-03-30 15:47:10

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1/100＋2/100＋3/100＋4/100。＋97/100＋98/100＋99/100 =(1/100+99/100)+(2/100+98/100)+。。。+(49/100+51/100)+50/100=49×1+50/100=49+1/2=49。5