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6.18*9.9+6.18怎么列简算算式?
人气：360 ℃　时间：2020-04-23 05:30:26
解答
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
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