Weekly Maths Problem

This week is World Maths Day and in light of that some of you have asked why don’t I do a weekly maths challenge like Word of the Week. So here goes!

Last week, my hill was covered in snow. On Thursday, as the wind blew across the hill the temperature was -7 degrees. By Saturday afternoon, the snow had disappeared because the temperature had reached a warm 5 degrees. What is the difference in temperature between Thursdays and Saturday.

You can share your answers here on face book or with me as I visit during the week. Remember you need to show your workings out to get the maximum points.