How many pieces of wire 25cm long can be cut from a roll 6 metres long?

There are 100 cm in 1 metre, so 6 metres is equal to 6 x 100 = <<6*100=600>>600 cm.

To find out how many 25cm pieces can be cut from the roll, we need to divide the total length of the roll by the length of each piece:
600 cm รท 25 cm = <<600/25=24>>24
Therefore, 24 pieces of wire 25cm long can be cut from a roll 6 metres long.