We are very excited to release the first set in a series of year 4 mental maths games. We have just added 27 great new mental maths games on addition for children aged between 8 and 9 (that's year 4 in the UK).  To make it a little easier to find the one you would like to play, we have broken them down into categories: Know Addition Facts Addition Strategies Written Addition Each of the games gives plenty of practice and most give a printable answer sheet at the end showing exactly where you went right (or wrong). The written addition activities show the methods used to help children understand written addition. Year 4 Mental Maths Games Remember, you can play all the mental maths games during a free trial, but once that has come to an end you can get unlimited access for just a small monthly fee or a one off yearly payment. Get a Free Trial