Take Away Shop

Walt: use subtraction strategies to solve tricky problems.
Task Description:For this task room 7 are doing subtraction.For this task I had three problem's to do.These problem's are about using subtraction strategies to solve hard and tricky problem.I had some help from my friend doing some of these problem's.We have a bronze,Silver and Gold task to do.When we finish we have to ask our teacher if we can post it and if he says yes then we can.