Question

transformati in dm : 2m,860mm,4,9cm,10,9m,24cm42cm,1,52m,2,78m,1,20m

Answer 1

2 m =20 dm 
860 mm=8,6 dm
4,9 cm= 0,49 dm 
10,9 m = 109 dm
24 cm =  2,4 dm
42 cm = 4,2 dm
1,52 m = 15,2 dm
2,78 m = 27,8 dm
1,20 m = 12 dm