# 3.18: Decimal Subtraction

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**Practice**Decimal Subtraction

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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.Difference

The result of a subtraction operation is called a difference.Magnitude

The magnitude of a number is the size of a number without respect to its sign. The number -35.6 has a magnitude of 35.6.Place Value

The value of given a digit in a multi-digit number that is indicated by the place or position of the digit.Sum

The sum is the result after two or more amounts have been added together.### Image Attributions

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Learn how to subtract decimals.

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Date Created:

Oct 29, 2012
Last Modified:

Feb 09, 2017
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