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简便运算:0.9+0.98+0.997+0.9996+0.99995
人气:254 ℃ 时间:2020-06-15 10:03:21
解答
0.9+0.98+0.997+0.9996+0.99995
=1-0.1+1-0.02+1-0.003+1-0.0004+1-0.00005
=5-0.12345
=4.87655
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