Maree bought a 3m length of timber. she cut one piece measuring 1.2m from it and divided the remaining length into 6 equal pieces. how long (in cm) was each of the shorter pieces?

First you need to do 3 - 1.2 = 1.8m to get the amount of timber left over. Then you divide by 6 which would equal 0.3m. Because it asks for the answer in centimeters, you need to multiply 0.3 by 100 to get 30cm. I hope this helps!