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1-1/2+1/6+1/12+1/20+1/30+1/42+1/36,能简便的要简便计算

学习时间:2026-09-26 07:50:05 阅读：7254

1-1/2+1/6+1/12+1/20+1/30+1/42+1/36,能简便的要简便计算

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迅速的短靴

开朗的酒窝

2026-09-26 07:50:05

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1-1/2+1/6+1/12+1/20+1/30+1/42+1/56=1-1/2+1/2-1/3+1/3-1/4+1/4-1/5+1/5-1/6+1/6-1/7+1/7-1/8=1-1/8=7/8

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善良的草丛
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2026-09-26 07:50:05
1-1/2+1/6+1/12+1/20+1/30+1/42+1/56=1-1/2+1/2-1/3+1/3-1/4+1/4-1/5+1/5-1/6+1/6-1/7+1/7-1/8=1-1/8=7/8

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