Concept

In our decimal number system, the value of a digit depends on its place, or position in the number. Each place has a value of 10 times the place to its right.

Rule

A number in standard form is separated into groups of three digits using commas. Each of these groups is called a period.

Beginning with the ones place at the right, each place value is multiplied by increasing powers of 10.

Example

What is the value of the underlined digit?
2,437,276

Solution

Starting on the right and writing out the number it can be seen that the underlined number 4 is in the hundred thousands place.
The value of the 4 in the number 2,437,276 = 400,000