a) 5285m = 5km 285 m = 5, 285km.
Because 1km = 1000m so :
Do 1km = 1000m nên :
1827m = 1000m + 827m = 1km 827 m = 1,827km
2063m = 2000m + 63m = 2km 63m = 2,063km
702m = 0m + 702m = 0km 702m = 0,702km.
b) Because 10dm = 1m so:
Do 10dm = 1m nên:
34dm = 30dm + 4dm = 3m 4dm = 3,4m
Because 100cm = 1m so:
Do 100cm = 1m nên:
786cm = 700cm + 86cm =7m 86cm = 7,86m
408cm = 400cm + 8cm = 4m 8cm = 4,08m
c) 6258g = 6kg 258g = 6,258kg
Because 1000g = 1kg so:
Do 1000g = 1kg nên:
2065g = 2000g + 65g = 2kg 65g = 2,065kg
Because 1000kg = 8 tons so:
Do 1000kg = 8 tấn nên:
8047kg = 8000kg + 47kg = 8tons 47kg = 8,047 tons.
8047kg = 8000kg + 47kg = 8tấn 47kg = 8,047 tấn.