原面积:4*6=24平方米
现在的面积:
4*3=12米
6*3=18米
12*18=216立方米
216-24=192立方米
增加192立方米
一块长方形草地,长4米,宽6米,现在长、宽各扩大3倍,面积增加多少平方米?
一块长方形草地,长4米,宽6米,现在长、宽各扩大3倍,面积增加多少平方米?
数学人气:245 ℃时间:2019-12-17 16:43:14
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