Four Number Challenge

/by

Does the absolute value of four numbers always lead to zero?

Read more

Same Base Multiples and Exponents

/by

Find the power of 4 that is equivalent to a given expression.

Read more

Double Exponents

/by

Find the power of 2 that is equivalent to a given expression.

Read more

Super Soccer

/by

How many full size soccer teams and how many “short formation” soccer teams will Supertown field?

Read more

Pages with Digits

/by

How many pages are in the book?

Read more

Proper Patterns

/by

Given some of the proper factors of a number, what could the number be?

Read more

Hypatia’s Triumph

/by

Take on the Egyptian Hypatia’s challenge about sums of squares.

Read more

Double Trouble

/by

Find a number that fits this description.

Read more

The Frog Race

/by

Two frogs have a race. Determine which frog wins the race.

Read more

Perfecting 90

/by

How can 90 become a perfect square? a perfect cube?

Read more

Three Daughters

/by

Determine the age of each daughter.

Read more

Multiples of 72

/by

What is the relationship between two divisors and their product, sum, difference, and quotient?

Read more

Choose an Elevator

/by

Determine which of two elevators reaches the lobby first.

Read more

Almost a Square

/by

What rectangle can you form that is close to a square?

Read more

Blocked Off

/by

Determine how many blocks Jeff has.

Read more

Save the Princess

/by

Help Princess Stunning find a particular perfect square number.

Read more

Keeping Pace

/by

How fast do two joggers run?

Read more

Greatest Product

/by

Find the greatest possible product of two natural numbers who have a particular sum.

Read more

OOPS! I Subtracted

/by

You know what you get when you multiply and subtract, but what two numbers did you start with?

Read more

Consecutive Sum

/by

Given the sum of consecutive numbers, find the least of these numbers.

Read more

Inventory Supplies

/by

How many packages of colored pens is an art-supply store selling?

Read more

Collecting Stamps

/by

Determine how many stamps Jessica has.

Read more

Scoring the Winning Goal

/by

How many games did the Maple Leafs win, lose, or tie?

Read more

Salary Schedule

/by

How many total days did a man work?

Read more

Fair Time

/by

Set up a schedule so that each person plays basketball for the same amount of time.

Read more

Willing Money

/by

Determine the amount of inheritance each family member receives.

Read more

Consuming Candy

/by

Determine the cost of packages of gummy bears, caramels, and jaw breakers.

Read more

Negative Exponents

/by

Explore the relationship of positive and negative exponents.

Read more

Average Score

/by

Using test scores and their average, find the missing test scores.

Read more

Want to be a Millionaire?

/by

If a bank doubles your money, how long will it take to become a millionaire.

Read more

Squares and Differences

/by

Determine the relationship of the squares of three consecutive integers. 

Read more

Difference of Squares

/by

Find positive integers which can be written as sum or difference of squares.

Read more

Minimizing Products

/by

Find two positive integers with a given sum and who have the smallest product.

Read more

Planning Cruises

/by

Determine three different length cruises that will leave on the same day.

Read more

36 Divisibility

/by

Explore some numbers divisible by 36. 

Read more

The Last Digit

/by

Given a number raised to a large power, find the ones digit of the expansion.

Read more

Fibonacci Extended

/by

Identify an explicit pattern between terms in a group of numbers that are generated recursively.

Read more