Online animation provides an introduction to the concept of place value of whole numbers. *4*Math lesson also provides limited sample questions at the end of the topic.*4**4**1*PLACE VALUE*2*Explains the place value of numbers in our number system gets ten times bigger each time we move to the left.*4*Explains that expanded notation is a way of writing a number to be sure we understand the value of each digit in the number.*4**4**4*Useful for teachers of maths.