Question

Write the following numbers in standard form.

Ninety-nine thousand nine hundred ninety-nine.

Answer 1

The standard form of a number is the way you usually see a number. Commas separate the digits into groups called periods as ones, thousands and so on.

The group of ones has ones, tens, and hundreds, and the group of thousands has thousands and ten thousands.

Therefore, the standard form of ninety-nine thousand nine hundred ninety-nine is $99,999$.