Dividing Whole Numbers

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Dividing Whole Numbers
Section 1.6
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The process of separating a quantity into equal
parts is called division.
Martin-Gay, Prealgebra, 5ed
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Division Properties of 1
The quotient of any number and that same number
is 1.
Martin-Gay, Prealgebra, 5ed
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Division Properties of 1 . . .
The quotient of any number and 1 is that same
number.
Martin-Gay, Prealgebra, 5ed
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Division Properties of 0
The quotient of 0 and any number (except 0) is 0.
Martin-Gay, Prealgebra, 5ed
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Division Properties of 0 . . .
The quotient of any number and 0 is not a number.
We say that
are undefined.
Martin-Gay, Prealgebra, 5ed
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Since division and multiplication are reverse
operations, dont forget that a division problem
can be checked by multiplying.
Martin-Gay, Prealgebra, 5ed
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Here are some key words and phrases that indicate
the operation of division.
Key Words Examples Symbols

divide divide 15 by 3 15 ? 3
quotient quotient of 12 and 6
divided by 8 divided by 4
divided or shared equally 20 divided equally among five people 20 ? 5
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How do you find an average?
A students prealgebra grades at the end of the
semester are 90, 85, 95, 70, 80, 100, 98, 82,
90, 90. How do you find his average?
Find the sum of the scores and then divide the
sum by the number of scores.
Sum 880
Martin-Gay, Prealgebra, 5ed