We are well into the year now and mental arithmetic skills should be improving rapidly. For year 4 we have another set of addition and subtraction questions, but they are quite tough. The first two questions involve adding up four single digit numbers. If only hearing the numbers out loud it is probably best to do this in the order they are heard. If seeing the sheet it is sometimes easier to look for pairs that make 10 or 20and do this part first. The year 5 questions include percentages, decimals and fractions. two of the questions look at converting percentages into fractions. it is important that children are shown that 50% means 50 out of 100 and that it can also be written as a fraction 50/100. All fractions can be thought of in this way eg 4/5 can be thought of as 4 out of 5. The year 6 questions further test addition and subtraction skills, this time using large numbers and decimals. They are quite challenging, even for adults. Go to Year 4 mental arithmetic Go to Year 5 mental arithmetic Go to Year 6 mental arithmetic