The Nines Challenge is a fun number-based puzzle which challenges you to make various results using exactly four nines as well as your choice addition, subtraction, multiplication, and division as well as grouping symbols.

# Number Puzzles

This square sums puzzle is a fun twist on a magic square type puzzle. Instead of trying to get each row and column to have the same sum, the goal is to have each 2×2 square within the larger square to have the same sum. So fun!

Put your knowledge of divisibility to the test with this fun divisibility puzzle that involves placing the digits 0-9 in the missing spaces.

In this fun and engaging Eights Number Challenge, you must use exactly four eights and your choice of arithmetical symbols to form the eight given target numbers. What is the Eights Challenge? Using exactly four eights, add arithmetical symbols between the eights to make each of the target numbers. You may use plus, minus, times, …

Can you place the numbers 1 to 7 in the diagram so that each line of numbers has the same sum?

Can you place the numbers 1 to 5 in the correct places to solve the equal sums puzzle?

The U Sums Puzzle is a number-placing puzzle involving the digits from 1 to 7. Can you make each line sum to 12?

In this fun and engaging Sevens Number Challenge, you must use exactly four sevens and your choice of arithmetical symbols to form the eight given target numbers. What is the Sevens Challenge? Using exactly four sevens, add arithmetical symbols between the sevens to make each of the target numbers. You may use plus, minus, times, …

Can you place the numbers 1 to 7 in the correct places to solve this fun Magic H Puzzle?

The 2024 math 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 …

Put your math skills to the test with this Christmas number challenge involving the digits in 12-25. Can you use the digits 1, 2, 2, and 5 to create expressions equivalent to each number between 1 and 25? I was inspired by the great success of the 3-1-4 Pi Day Number Challenge, and I wanted …

Are you ready to take on the Sixes Challenge? You must use exactly four sixes and your choice of arithmetical symbols to form the eight given target numbers. What is the Sixes Challenge? Using exactly four sixes, add arithmetical symbols between the sixes to make each of the target numbers. You may use plus, minus, …

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

This 3-1-4 Number Challenge is the perfect way to challenge your brain on Pi Day! How many different numbers can you come up with mathematical expressions for using only the digits 3, 1, and 4? Instructions Use the digits 3, 1, and 4 exactly one time each along with any mathematical symbol or operation of …

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

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 …

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 …

Here are 10 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! Make Six Puzzle – Number Challenge The Make Six Number Challenge …

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 …

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. Strimko puzzles are one of my favorite …

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. …

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 …

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 …

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: …

I was an instant fan of this Sums Puzzle when I discovered it in Puzzle Box, Volume 2. Place the number cards 1-99 into the grid, once each. A cell can contain no numbers, one number, or two numbers. Two numbers in a cell form a 2-digit number in that cell. The numbers outside the …