The two main ways of writing numbers are standard form and scientific notation.
Standard form represents a number as a whole number or decimal, such as 25,000 or 3.14. Scientific notation expresses a number as a decimal between 1 and 10 multiplied by a power of 10, such as 2.5 x 10^4 or 3.14 x 10^0. Scientific notation is useful for writing very large or very small numbers concisely.
