Răspuns :
4 dm=40 cm
9 dm =900 mm
6 cm=60mm
80 dm=800 cm
30 cm=300 mm
5 dm=500 mm
9 dm =900 mm
6 cm=60mm
80 dm=800 cm
30 cm=300 mm
5 dm=500 mm
4dm- 40 cm , 9dm- 900mm , 6 cm - 60 mm , 80 dm - 800 m , 30 m - 300 mm , 5 dm - 500 mm