10 cm = 1 decimetre so 5 cm = 0.5 decimetres.
It depends on whether you are measuring the thickness of the board (5 mm) or length (5 dm).
680 of them.
8 dm
1 dm
5cm equals 0.5dm
0.5dm
5cm=50mm
10 cm = 1 decimetre so 5 cm = 0.5 decimetres.
50 of course !
It depends on whether you are measuring the thickness of the board (5 mm) or length (5 dm).
25
680 of them.
8 dm
1 dm
40 dm
200 dm