9999/10000X7+1111/10000X27怎样使这个式子更简便?

天堂鸟20032022-10-04 11:39:541条回答

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衣素倚空门 共回答了11个问题 | 采纳率81.8%
9999/10000X7+1111/10000X27
=9999/10000X7+9999/10000X3
=9999/10000×10
=9999/1000
1年前

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