PUZZLES

Free, fun, and meaningful math for all

Every JRMF puzzle is hands-on, play-based, and standards-aligned.

We design our activities to have a low floor so that anyone can find a way to engage and a high ceiling so that everyone can find a meaningful challenge.

All of our puzzles come with free festival guides that help you use our activities at home, in the classroom, or during math festivals.

For All Ages Number

Catch Up

Can you make the longest line?

Let's play

3rd - 12th Grade Number

Chameleon Island

Help all the chameleons on the island change into the same color.

Let's play

3rd - 12th Grade Number

Countdown

Be the player to take the last token!

Let's play

For All Ages Number

Dice Bingo

Can you make a winning bingo card?

Let's play

3rd - 12th Grade Number

Dueling Dice

Can you make a better die than your partner?

Let's play

3rd - 12th Grade Number

Graceful Gourds

Can you gracefully label these pumpkin patches?

Let's play

3rd - 12th Grade Number

Ladybugs

Help as many ladybugs as possible land on the leaves.

Let's play

3rd - 12th Grade Number

Magic Flowers

Can you arrange 5 numbers into a Magic Flower in which every group of three numbers in a line adds up to the same magic number?

Let's play

3rd - 12th Grade Number

Prime Cubes

Armed with only your understanding of prime numbers, play against your friends to find the best way to fill in our colorful cube.

Let's play

3rd - 12th Grade Number

Stepping Stones

Can you find a way to place the next stepping stone?

Let's play