## 2023 Challenge: Yearly Number Challenge

The yearly number challenge is a simple to explain puzzle that will keep you captivated for hours. Using the digits in the current year exactly one time each, can you write a mathematical expression for each digit between 1 and 100? You may use any mathematical symbol or operation of your choosing. What is the …

## Threes Challenge

Can you solve the Threes Challenge? Can you use exactly four threes and your choice of arithmetical symbols to form the target numbers? What is the Threes Challenge? Using exactly four threes, add arithmetical symbols between the threes to make each of the target numbers. You may use plus, minus, times, and divide symbols, as …

## Twos Challenge

Can you solve the Twos Challenge? Can you use exactly four twos and your choice of arithmetical symbols to form the target numbers? Even though Twosday (2/22/22) was nine months ago, I still have lots of blog traffic to the Twosday Challenge. I decided it was time to share a version of the challenge that …

## 7 Free Printable Math Challenges to Enjoy

Here are 7 free printable math challenges that my students and I have enjoyed! As a math teacher, I love finding new math challenges to use with my students or to just solve myself. Looking for more math puzzles? Check out my puzzles page! Free Printable Math Challenges

## Twosday Challenge Activity

This Twosday Challenge is the perfect way to infuse a bit of mathematical fun on an upcoming mathematical holiday – Twosday! What is Twosday? Twosday is the name being given to Tuesday, February 22, 2022 since the date will be written as 2/22/22 in the US and 22/2/22 in much of the rest of the …

## Strimko Puzzles in the Classroom

I love introducing my students to new puzzles over the course of the school year. I often pull out strimko puzzles (a logic puzzle that is often compared to sudoku puzzles) on days when I am missing a large portion of my students due to activities or events. In a strimko puzzle, you must place …

## Rotated Square Puzzle

This Rotated Square Puzzle challenges you to place the numbers 1 through 9 in the boxes of the rotated square so that the numbers in each horizontal row form a number which is a horizontal square. This puzzle is the creation of L.P. Mochalov, and I found it in his book of Totally Tough Brainteasers. …

## Make 30 Puzzles

I’ve been having a lot of fun recently posting these Make 30 Puzzles for my students to tackle on a daily basis. The goal of these Make 30 puzzles is to arrange the digits and any of the arithmetic operations to form an expression that evaluates to 30. For example, the digits 0, 2, and …

## Which Side of the Line Numbers Puzzle

In this which side of the line numbers puzzle, students must determine if the numbers 9 and 10 go above or below the line. I ran across this puzzle in The Big Book of Mind-Bending Puzzles by Terry Stickels and decided it would make a great puzzle to put up in my classroom. I typed …

## Simple Sums Puzzle

Check out this simple sums puzzle if you are looking for a fun opening activity or a brain break. Insert any of the following signs (add, subtract, multiply, divide, or parentheses) between any numbers on the left of the equations to make them correct. You may join numbers on the left together if you wish: …