30cm等于几分之几dm

30cm等于几分之几dm
2025-04-03 04:22:43
推荐回答(2个)
回答1:

30厘米=3分米
解:已知1分米=10厘米,
得30厘米=30÷10分米
=3分米
即30厘米=3分米

回答2:

10cm = 1dm 30cm = 3dm