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Permutations

The problems in this section explore finding the number of ways to arrange or group things known as listing all of the permutations. Often factorials are used with this concept.
 Related Resources

Interactive resources from our Math Tools project:
Math 7: Counting Principles: Permutations
The closest match in our Ask Dr. Math archives:
Middle School Archive
NCTM Standards:
Data Analysis & Probability Standard for Grades 68
Access to these problems requires a Membership.

Back Yard Trees
 Judy Ann Brown

PreAlgebra, difficulty level 4. How many different quadrilaterals can be formed by joining any four of the nine trees?
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Even Number Puzzle
 Judy Ann Brown

PreAlgebra, difficulty level 3. How many even fourdigit whole numbers exist such that the thousands digit is odd, and all four digits are different?
... more>>

Kwae
 Suzanne Alejandre

PreAlgebra, difficulty level 3. Determine the number of kwae that can be made.
... more>>

Locker Combinations
 Judy Ann Brown

PreAlgebra, difficulty level 4. In this counting problem you will need to determine the total number of possible locker combinations.
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Seating Arrangements
 Judy Ann Brown

PreAlgebra, difficulty level 3. Four new students arrive in Mrs. Brown's homeroom. After a few minutes she turns to them and says, "There are 1680 ways
that you can sit in the empty seats." How many empty seats are there in the room?
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TrickorTreat Route
 Judy Ann Brown

PreAlgebra, difficulty level 4. Which of the many possible routes should the Anderson children take on their Halloween trek?
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