Here we will show you what 399 looks like in expanded form. More specifically, we will show you the expanded notation form of 399, the expanded factor form of 399, and the expanded exponential form of 399.
Expanded Notation Form
With the expanded notation form, we find the value of each digit in 399 and then add them up like this:
+ 300
+ 90
+ 9
= 399
Expanded Factor Form
With the expanded factor form of 399, we multiply each digit of 399 by the place value of the digit and then add them up like this:
+ 3 × 100 + 9 × 10 + 9 × 1
= 399
Expanded Exponential Form
With the expanded exponential form of 399, we multiply each digit of 399 by the place value of the digit in exponential form, and then add them up like this:
+ 3 × 102 + 9 × 101 + 9 × 100
= 399
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