Số 1km = m 1m = mm 1hm = m 1m = cm 1dam = m 1m = dm
Giải thích
1km = 1000m 1m = 1000mm
1hm = 100m 1m = 100cm
1dam = 10m 1m = 10dm
1km = 10hm 1dm = 100mm
1hm = 10dam 1cm = 10mm
1km = 1000m 1m = 1000mm
1hm = 100m 1m = 100cm
1dam = 10m 1m = 10dm
1km = 10hm 1dm = 100mm
1hm = 10dam 1cm = 10mm