

5.1About Setting up problems In mathematics, there have been certain methods used for the four arithmetical operations. These are even called algorithms. These are for simplifying various calculations. Nowdays we do not use as many of these methods since we often have a calculator available to us. However, we sometimes don’t have this available – because it is a good idea to be able to quickly calculate with pencil, paper, and our head. Different countries and cultures often have different methods – here we will show those methods that are used most commonly in Sweden.
In this chapter you will also see how to use methods/algorithms for the for arithmetical operations. Remember that it is important to be able to add and subtract in your head and that you also know your multiplication tables. 
