viết số thích hợp vào chỗ chấm: 2,586km=........km............m
2,539m=.........m.........dm.........cm.........mm =............m
=..........m..........cm.........mm
=...........m..............mm 8,2km=............km.............m
=....................mm =..............m
7,306m=........m.........dm..........mm
=.............m....................cm...........................mm
=.............m............mm
=................mm
2,539 m = 2m 5 dm 3cm 9mm 7,306m = 7m 3dm 6mm
= 2m 53cm 9mm = 7m 30cm6mm
= 2m 53mm = 7m 306mm
= 7306mm
2,586km = 2km 586m 8,2km= 8km200m
= 2586m = 8200m
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