 Accounting for Age  Suzanne Alejandre
PreAlgebra, difficulty level 3. Given a number trick, explain why the result is always the original number followed by your age.
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 Alien Operations  Teaching the Young Learner Group
Elementary, difficulty level 2. Can you help scientists decipher the operation symbols on this alien artifact?
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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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 Balancing Mobiles  Suzanne Alejandre
PreAlgebra, difficulty level 2. Explore two Laws of Archimedes as you puzzle through a balanced mobile.
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 Baseball Attendance Figures  Judy Ann Brown
PreAlgebra, difficulty level 3. Find the difference between the greatest possible number of people at the stadium and the least possible number of paid admissions to the game.
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 Boxes of Stationery  Annie Fetter, Suzanne Alejandre
PreAlgebra, difficulty level 3. How many sheets of paper and how many envelopes are in the box of stationery?
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 Campfire Camaraderie  Jessica Philips from Western Oregon University
Math Fundamentals, difficulty level 1. How did the animals place themselves around the campfire?
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 Car Rental Quandary  Judy Ann Brown
PreAlgebra, difficulty level 3. Compare the car rental deals using the given information.
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 Cats, Dogs, and Kids Everywhere You Look  Judy Ann Brown
Middle School, difficulty level 2. A Logic problem: Patty's dog and Oscar's cat are both namesakes of the owner of the cat named Oscar...Who owns the dog Patty?
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 Club Competition  Suzanne Alejandre
PreAlgebra, difficulty level 2. Determine how many teams the Fibonacci Middle School Math Club can enter in their first competition.
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 Coin Count  Roya Salehi and Judy Ann Brown
PreAlgebra, difficulty level 3. Use the given information to determine the number of nickels and dimes in Lisa's bank.
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 Commuting Conundrum  Suzanne Alejandre
PreAlgebra, difficulty level 2. Help Suzanne and Richard decide which train tickets will give them the most value for their dollar.
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 Coverage  Larry Sue
Discrete Math, difficulty level 1. This classic problem asks whether the given shape covers the given grid.
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 Cubic Changes  Lisa Lavelle
Math Fundamentals, difficulty level 4. Determine how the volume and surface area of a cube change when the edge length is changed.
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 Duke is Missing  Judy Ann Brown
PreAlgebra, difficulty level 3. Duke's head is 6 inches long, his tail is as long as his head plus half the length of his body, and his body is as long as the head and tail combined. How long is Duke?
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 Elevator Weighin  Kristina Lasher
Math Fundamentals, difficulty level 2. Would Melissa's family and neigbors exceed the maximum weight allowance of their apartment building elevator? If not, how many more would fit?
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 Funny Money  Lisa Lavelle (adapted)
Math Fundamentals, difficulty level 2. Determine the amount of money Divya has in her bank.
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 Geo in Jeopardy  Richard Tchen
PreAlgebra, difficulty level 3. Find the dimensions of the threedimensional phone booth.
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 The Graduating Class  Judy Ann Brown
PreAlgebra, difficulty level 3. Use the information about students with different grades to determine the number of students in Mrs. Smith's class.
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 Grampa Joe's Great Grandpets  Kristina Lasher
Math Fundamentals, difficulty level 1. Grampa Joe is taking gifts to his grandchildren for their new pets. Can you help him figure out which great grandpet belongs to each grandchild?
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 Guess My Number If You Can!  Judy Ann Brown
PreAlgebra, difficulty level 4. Use division clues to reveal the secret number.
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 Happy New Year!  Judy Ann Brown
PreAlgebra, difficulty level 4. A puzzle for the new year: how is the grid designed?
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 Happy Thanksgiving  Judy Ann Brown
PreAlgebra, difficulty level 3. A logic puzzle to solve the ageold question, "Who will wash the dishes?"
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 High School Reunion  Western Oregon University Preservice
Elementary, difficulty level 2. Use logic to discover the arrangement of
person, car, city, and occupation.
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 Homework Phone Pals  Leigh Nataro
Discrete Math, difficulty level 1. Using the given clues, figure out which students are homework phone pals.
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 Hot Dog Day!  Jeffrey Mo
Math Fundamentals, difficulty level 3. Determine how many large hot dogs have been ordered for this special day.
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 How Old is Ms. Nelson?  Judy Ann Brown
PreAlgebra, difficulty level 2. Ms. Nelson claims that she is three times as old as her little sister. However, six years ago she was five times as old as her sister was. How old is Ms. Nelson?
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 It's A Secret  Judy Ann Brown
PreAlgebra, difficulty level 2. In this puzzle, your job is to decode the secret message.
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 Label Shuffle  Judy Ann Brown
PreAlgebra, difficulty level 3. There are three containers. Which one has the red marbles?
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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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 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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 Lost in Des Moines  Judy Ann Brown
PreAlgebra, difficulty level 2. Calculate the speed of a car using given information.
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 Making Money  Alice Miller
PreAlgebra, difficulty level 3. How much money would you have by December 31, 1999, if you put 10 cents in the special "math" bank on January 1, 1999?
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 Math Club Lollipop Profits  Judy Ann Brown
Math Fundamentals, difficulty level 3. The Math Club plans to sell lollipops. Help them to calculate their profit.
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 Math Club Ski Trip  Judy Ann Brown
PreAlgebra, difficulty level 2. Mrs. Germain and her friend, Mrs. Granville, need your help to plan the shortest route to visit five local ski areas.
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 More Balloons  Lisa Lavelle
Math Fundamentals, difficulty level 5. Here's a more difficult problem based on our balloon color preferences.
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 Movie Seating  Maria Fung and her students
PreAlgebra, difficulty level 2. Use the clues to determine where Mom, Dad, Randy, Shelley, Noreen, and Alan sit at the movie theater.
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 Mr. Carmel's Party Plan  Judy Ann Brown
PreAlgebra, difficulty level 2. Help Mr. Carmel's class earn an ice cream party by counting the number of possible sundaes.
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 The Musicians' Dilemma  Daniel Weinstein
Discrete Math, difficulty level 1. The musicians need to cross a bridge but only two may go at a time, using the flashlight. They take different amounts of time to cross but they have only seventeen minutes to get to the concert. How can they do this?
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 The Name Game  Judy Ann Brown
PreAlgebra, difficulty level 3. The first student says his/her own name; the second student repeats the first student's name and adds his/her own name... How many names are said if the numbers of students in my math classes on the first day are 27,
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 Operating Diagonally  Suzanne Alejandre
PreAlgebra, difficulty level 2. Think about the effect of multiplication and addition on the numbers in the hundreds chart.
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 The Oracle's Oration  Annie Fetter
PreAlgebra, difficulty level 3. Explain how payment should be distributed based on the number of rolls two people shared with the group of three.
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 Ostrich Llama Count  Suzanne Alejandre
PreAlgebra, difficulty level 2. Given the combined number of heads and legs of ostriches and llamas, help Raul and Esteban figure out how many ostriches and how many llamas there are.
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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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 Peanut's Back Yard  Jonathan Bauer
PreAlgebra, difficulty level 3. Peanut, the overexcited dog, makes 40 laps around a stake and travels a total distance of 1 mile. If his bowl of water is 20 feet away from the stake, can he get a drink?
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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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 Penguin Confusion  Lisa Lavelle
Elementary, difficulty level 2. Four penguins have lost their nametags. Help them sort out who's who.
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 Penguin Fun  Bob Coulter
Elementary, difficulty level 2. Three penguins go to an amusement park. Can they all take the same ride?
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 Perfect Passengers  Mrs. Clark's Sixth Grade Stars
Elementary, difficulty level 2. See if you can determine who's who using clues to their eye color and luggage.
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 Pouring the Punch  Neil Bress
PreAlgebra, difficulty level 3. The Refreshments Committee needs to pour exactly four liters of eggnog using only threeliter and fiveliter measures.
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