Does your child need a little challenge in math and problem solving? These math puzzles are tricky, but are a fun spin-off of the popular Ken Ken puzzle.

Calling all Sudoku and Ken Ken buffs, here's a little something new! These math puzzles are tricky, but are a fun spin-off of the popular Ken Ken puzzle.

Keep your amazing math student on his toes with some challenging puzzles! These math grids are tricky, but are a fun spin-off of the popular Ken Ken puzzle.

Calling all Sudoku and Ken Ken buffs, we have a new addicting puzzle for you! These are tricky, but a fun spin-off of the popular Ken Ken puzzle.

Help your child with his logic and number skills with this fun worksheet, which is similar to the number puzzle game of Sudoku.

Practice the concept of perfect squares with this fun worksheet. To uncover the code your child will need to determine if each number is a perfect square.

If your child has a knack for number games, he'll love this mysterious math puzzle. Kids will use addition, subtraction, multiplication, and division skills.

This missing numbers math puzzle will get your kid thinking creatively. Kids who enjoy Ken Ken and Sudoku puzzles will like this amazing math puzzle.

Strengthen students' logic and critical thinking skills with this engaging logic puzzle!

Help your fourth grader solve her way to Sudoku Island by completing this classic number placement puzzle.

Hunt down clues and treasure in this scavenger hunt-themed logic puzzle worksheet!

Help your students determine if a shape is regular or irregular!

On this second grade math worksheet, kids use their logical reasoning and critical thinking skills to help Bart the Bear solve four Sudoku number puzzles.

In this second grade math worksheet, kids use their logical reasoning and critical thinking skills to solve four Sudoku number puzzles.

Put on your thinking caps and then buckle in for this Fair Ride Frenzy logic puzzle!

Challenge your third graders with a cool winter math puzzle!

Get ready for some magic math with this exciting worksheet!

Solve the mystery of who's who in this puzzle full of spooky, cute, and creative Halloween costumes! 

Ready or not, engage students with this hide-and-seek-themed logic puzzle!

Build a flurry of logic skills with Snowman Sudoku for third through fifth graders!

Before you dress up and go trick-or-treating, try a problem-solving challenge full of cool Halloween costumes!

Children will follow the clues to shade in the numbers on a hundreds board in this playful math puzzle.

Children will follow the clues to shade in the numbers on a hundreds board in this playful math puzzle.

Children will follow the clues to shade in the numbers on a hundreds board in this playful math puzzle.

Practice mixed operations with this fourth-grade math puzzle!

KenKen® is a math logic game that comes from Japan. This beginner puzzle is perfect for a fifth grade student working on operations and math reasoning.

Sudoku and Ken Ken enthusiasts will enjoy this mad math puzzle, full of addition, subtraction, multiplication, and division challenges.

Learners will determine the rule for each sequence to find the missing numbers in this engaging math puzzle.