 The Ages of Sigma  Terry Trotter
Algebra, difficulty level 1. Find the ages of the three artists who make up the latest singing sensation: Sigma.
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 Anderson's Pumpkin Patch  Teaching the Young Learner Group and Lisa Lavelle
Math Fundamentals, difficulty level 2. How many students are there in Ms. Juncos's fourth grade class?
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 Birds in Trees  Steve Maurer
Elementary, difficulty level 3. Can you figure out the number of trees in the courtyard?
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 Can This Be Done?  Judy Ann Brown
Middle School, difficulty level 1. Find the largest sixdigit number that can be written following two simple rules.
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 Cicada Circus  Kristina Lasher and special thanks to John Cooley
Math Fundamentals, difficulty level 2. Use the table of information about periodical cicadas to figure out when
the next time is that there will be three years in a row without an
emergence.
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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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 Counting Chicken Wings  Annie Fetter, Suzanne Alejandre
PreAlgebra, difficulty level 3. Figure out how many wings are in the Biggest Bucket O' Wings.
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 Divisible by a Dozen  Terry Trotter & Annie Fetter
PreAlgebra, difficulty level 3. If you take any three consecutive integers, multiply the first times the square of the second, then multiply by the third, is 12 a factor of the product?
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 The EV Function  Terry Trotter
Algebra, difficulty level 2. Given a function's definition, find the input (argument) value that yields a certain output value.
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 Five Digits of Fun  Lisa Lavelle
Math Fundamentals, difficulty level 4. Find a fivedigit number based on these clues.
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 Four Playful Mathematicians  inspired by Maria Fung's class at Western Oregon
Math Fundamentals, difficulty level 2. Follow the clues to help the four playful mathematicians return the lost watch.
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 An Interesting Integer  Judy Ann Brown
PreAlgebra, difficulty level 2. I'm thinking of a particular integer. It is a multiple of three, five, and seven. No digit occurs more than once. Can you find my number?
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 Jellybean Fractions  Lisa Lavelle
Elementary, difficulty level 2. Determine good and bad choices in playing the Jellybean Fractions Game.
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 Jellybean Rectangles  Lisa Lavelle
Math Fundamentals, difficulty level 3. Have fun figuring out strategy in the Jellybean Rectangle game.
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 The Locker Problem  Ethel Breuche
Discrete Math, difficulty level 2. This classic number theory problem investigates properties of prime numbers, perfect squares, and counting in a problem that involves opening and closing locker doors.
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 Open and Shut Case  Judy Ann Brown
PreAlgebra, difficulty level 2. Find the locker combination using mathematical clues.
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 Palindrome Day  Judy Ann Brown
PreAlgebra, difficulty level 2. How many Palindrome Days are there in a year?
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 Peanut Butter and Jelly  Lisa Lavelle
Math Fundamentals, difficulty level 3. How many sandwiches can we make before using up a package of bread and jars of jelly and peanut butter at the same time?
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 Prime Probability  Lisa Lavelle
PreAlgebra, difficulty level 3. Given the expression n^2  5, what is the probability that the result is prime for integers between 2 and 12?
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 The Professors' Primes  Terry Trotter
Algebra, difficulty level 2. Find the product of three prime numbers that three professors pick.
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 A Rhyming Riddle  John Allard, Carlton Shedrick, Donnie Sartwell
Trig/Calc, difficulty level 3. Find the solutions for x and y in an exponential equation.
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 Simple Arithmetic  Judy Ann Brown
Middle School, difficulty level 2. Titles can be deceiving  this is a simple arithmetic problem but you need to find the numbers.
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 Treasure Hunt Math  Judy Ann Brown
PreAlgebra, difficulty level 3. Use clues to find the mystery palindrome.
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 What's My Angle?  Terry Trotter
Algebra, difficulty level 3. Using concepts of vertical angles and supplementary angles, solve two quadratic expressions to find the measure of a given angle.
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