A) 2 830m = 2km 830m = 2,83km
847m = 0km 847m = 0,847km
375cm = 3m 75cm = 3,75m
B) 9 008g= 9kg 008g = 9,008 kg
1 025kg = 1 tấn 25kg = 1,25 tấn
2830 m=2 km 830m=2,830 km
847 m=0 km 847 m=0,847 km
375 cm=3 m 75 cm=3,75 m
9008 g=9 kg 8 g=9,008 kg
1025 kg=1 tấn 25 kg=1,025 tấn