Question

Emma uses a 250 meters roll of crepe paper to make steamers how many dekameters of crepe paper does Emma use

Answer 1

the dekameter (or decameter) first needs to be a translated into how many the meters. deka means 10, so a dekameter it must be 10 meters. So we have to divide 250 by 10, and then we will come up with 25 dekameters.
hope that helps!!