Positional notation

Positional notation is a way of writing numbers using different symbols or digits. For example, the number 4 can be written as "4". To write bigger numbers, like 100, you can use more than one digit in the same place. The number 100 can be written as "100". We also use different places in positional notation so that we can write bigger numbers. For example, we use the "ones" place to write 4, the "tens" place to write 100, and the "hundreds" place to write 4,000. The number 4,100 can be written as "4,100" with a one in the "ones" place, a zero in the "tens" place, and a four in the "hundreds" place. Positional notation is useful because it helps us write numbers in a way that is easier for us to understand.