一个正方形花坛.它的最外层每边各放了9盆花,最外层共摆了多少盆花?
一个正方形花坛.它的最外层每边各放了9盆花,最外层共摆了多少盆花?
数学人气：963 ℃时间：2020-03-19 01:10:55
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32谢谢啦
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