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3.2: Numbers in Expanded Form

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

Decimal

In common use, a decimal refers to part of a whole number. The numbers to the left of a decimal point represent whole numbers, and each number to the right of a decimal point represents a fractional part of a power of one-tenth. For instance: The decimal value 1.24 indicates 1 whole unit, 2 tenths, and 4 hundredths (commonly described as 24 hundredths).

Decimal point

A decimal point is a period that separates the complete units from the fractional parts in a decimal number.

Expanded Form

Expanded form refers to a base and an exponent written as repeated multiplication.

Whole Numbers

The whole numbers are all positive counting numbers and zero. The whole numbers are 0, 1, 2, 3, ...

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Difficulty Level:
At Grade
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Date Created:
Oct 29, 2012
Last Modified:
Sep 04, 2016
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MAT.ARI.274.L.1