2016/10/05 Tom Stitzer
As someone else said, the estimation problems have mistakes. When estimating, I'm sure most know that if you see a 5 or higher, you round up. 4 or less and you round down. In the questions asked here it is inconsistent. Sometimes the correct answer would indicate you round up while others indicate you round down. For a student who is trying to get better at math, this is a bad bad problem. Please fix this. Otherwise I cannot give it a higher rating.