Răspuns:
Explicație pas cu pas:
300 m = 3000 dm = 30000 cm = 300000 mm
9000 mm = 900 cm
5 km 18 m = 5000 m + 18 m = 5018 m
2 m 6 dm = 20 dm + 6 dm = 26 dm = 260 cm
4 m 5 cm = 400 cm + 5 cm = 405 cm = 4050 mm
90 m = 900 dm = 9000 cm = 90000 mm
500000 mm = 50000 cm
12 km 50 m = 12000 m + 50 m = 12050 m
4 m 8 dm = 40 dm + 8 dm = 48 dm = 480 cm
5 m 5 mm = 500 cm + 5 mm = 5000 mm + 5 mm = 5005 mm
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