In the next part of the mental maths series, we are going to look at multiplying and dividing by 10, 100 and 1000. Your child will come across these type of questions in their arithmetic tests but it is also a really important skill to help them answer other mental maths questions and to use within grid method for multiplication.
Children tend to start this in Year 4 and Year 5 and the aim is for children to be able to do this mentally. However, a good starting point is using a place value chart.
There are some rules to remember: