With the start of the summer term comes the next in our sets of mental arithmetic worksheets for years 4, 5 and 6. The year 4 questions concentrate on multiplying and dividing by ten as well as place value. It is always worth reinforcing the idea that to multiply by ten move each digit one place to the left and to divide by ten move each digit one place to the right. The year 5 and 6 questions are of a similar kind, although the numbers are larger. The first two questions of the year 5 sets look at writing large numbers in figures, including millions. Writing a number such as one million two hundred thousand in figures can prove to be quite tricky, with many adults getting into a muddle as well as children. It is best to remember that numbers come in sets of three: hundreds, tens and units e.g. 123 hundreds, tens and units of thousands e.g. 123 123 hundreds, tens and units of millions e.g. 123 123 123 so 123 123 123 is one hundred and twenty three million one hundred and twenty three thousand one hundred and twenty three. Go to Year 4 mental arithmetic Go to Year 5 mental arithmetic Go to Year 6 mental arithmetic