This week's mental arithmetic questions for years 4, 5 and 6 are now up and running! These pages can be used in lots of different ways, both with individual children or whole classes. If only reading the questions out make sure that they are repeated at least twice. The numbers could be written on a whiteboard, or the child could be given the whole sheet, although in the KS2 SAT mental arithmetic test they will have to listen! The year 4 questions concentrate on addition and subtraction, with a few other bits and pieces. Lot's of skills are needed to answer these. For example, subtract 19 from 124 can be done in several ways, but probably the most efficient is to take 20 from 124, leaving 104 and then adding 1 to make 105. Decimals and fractions form the basis of the year 5 questions. Tricky questions such as 'Find two fifths of 100' require two steps: Step 1: find one fifth of 100 by dividing 100 by 5, which is 20. Step 2: double 20, which is 40. There are also questions on converting simple fractions such as a quarter into decimals. These conversions need to be learned 'off by heart'. The year 6 questions also concentrate on decimals and fractions, including equivalent fractions. Go to Year 4 mental arithmetic Go to Year 5 mental arithmetic Go to Year 6 mental arithmetic