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3Dm等于多少Cm

3dm等于(30)cm;3*10=30(厘米)

3dm=(30)cm dm是分米 cm是厘米1dm=10cm3dm=30cm

3cm=3/10dm=3/100m

3dm等于0.3米. 因为1米等于10 分米= 10dm. 希望可以帮到你~ 欢迎追问~

3dm = 30cm1dm = 10cm 希望我的回答对您有帮助,满意请采纳,谢谢.

3dm 等于300mm

40cm=0.4m 3dm=0.3m PS:1dm=10cm=0.1m1cm=0.1dm=0.01m

3dm=30cm 望采纳

3dm=30cm

3dm=(30)cmdm是分米cm是厘米1dm=10cm3dm=30cm

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