 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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 The Bracelet Craze  Leigh Nataro
Discrete Math, difficulty level 3. Find how many ways beads can be arranged around a bracelet.
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 Coding Conundrums  Mary DeYoung & class
PreAlgebra, difficulty level 2. Explore encoding and decoding in this cipher puzzle.
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 Deranged Uncle Al  Ethel Breuche
Discrete Math, difficulty level 3. Deranged Uncle Al allows each of his four nephews to select a toy, and buys them the four toys. How many different ways can he give each of the boys a toy so that no boy receives the toy he actually selected?
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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?
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 Flipping Over Pennies  Judy Ann Brown
PreAlgebra, difficulty level 3. How many equally likely outcomes are there when flipping 10 coins?
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 HomeworkFree Fridays  Claire Mead
Math Fundamentals, difficulty level 2. How many different ways can Donna roll the blue and red dice to win a weekend free of
homework?
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 Intersecting Circles  Annie Fetter
Geometry, difficulty level 3. What is the maximum number of times six circles of the same size can intersect? In other words, draw six circles of the same size on a piece of paper  what is the maximum number of intersections your drawing can have?
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 Kwae  Suzanne Alejandre
PreAlgebra, difficulty level 3. Determine the number of kwae that can be made.
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 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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 Payment in Kind  Lisa Lavelle (adapted)
Elementary, difficulty level 3. Determine the spouses of three kind women based on the details of their inheritance.
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 Pegging Possibilities  Michael Urbut
PreAlgebra, difficulty level 2. Explore the number of possible arrangements of pegs in this logic game.
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 Pondering Palindromes  Mary DeYoung & class
Math Fundamentals, difficulty level 1. Explore 4digit palindromes and find something else they have in common.
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 Puzzling Puzzle Pieces  Lisa Lavelle
Math Fundamentals, difficulty level 2. Explore the ways 108 puzzle pieces can be arranged.
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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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 Seating Arrangements  Leigh Nataro
Discrete Math, difficulty level 3. How many different ways can three people sit at a 10seat counter so that there are empty seats between them?
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 The Straggler Shakes Hands  Melissa Kennedy, Susan Rose, Ethel Breuche
Algebra, difficulty level 3. There were one hundred fortyone handshakes in all. How many people did the straggler know? This puzzle involves a quadratic expression and triangular numbers.
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 Totolospi  Suzanne Alejandre
PreAlgebra, difficulty level 2. Calculate the probability of advancing on a toss when playing the game
Totolospi.
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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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 Video Trading  Joyce Hoellein & Class
Math Fundamentals, difficulty level 2. Determine the number of trades necessary for each of the 4H members to see each of the video tapes.
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 Vinnie Valentine's MixUp  Leigh Nataro
Trig/Calc, difficulty level 4. What is the probability of getting exactly 10 out of 20 valentines to the correct person?
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 Welcome Back  Leigh Nataro
Discrete Math, difficulty level 3. Find the probability of spelling "Welcome Back" when cards with each letter are flipped over.
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 Where Should I Sit?  Judy Ann Brown
Middle School, difficulty level 3. On Monday three new students arrived in Mrs. King's homeroom... How many empty seats were there in Mrs. King's room?
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 World Series Champions  Leigh Nataro
Trig/Calc, difficulty level 3. How many ways could a baseball team win a World Series of n games if it must win a majority (one more than half) of the games played?
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