Here we will show you what 397.5 looks like in expanded form. More specifically, we will show you the expanded notation form of 397.5, the expanded factor form of 397.5, and the expanded exponential form of 397.5.
Expanded Notation Form
With the expanded notation form, we find the value of each digit in 397.5 and then add them up like this:
+ 300
+ 90
+ 7
+ 0.5
= 397.5
Expanded Factor Form
With the expanded factor form of 397.5, we multiply each digit of 397.5 by the place value of the digit and then add them up like this:
+ 3 × 100 + 9 × 10 + 7 × 1 + 5 × 0.1
= 397.5
Expanded Exponential Form
With the expanded exponential form of 397.5, we multiply each digit of 397.5 by the place value of the digit in exponential form, and then add them up like this:
+ 3 × 102 + 9 × 101 + 7 × 100 + 5 × 10-1
= 397.5
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