This easy Sudoku puzzle features the lowercase letters a, b, c, and d! Solve the puzzle by writing each letter only once in each row, column, and block.

Make a splash with this spring-themed sudoku for third, fourth, and fifth graders!

Embrace Easter celebrations with this puzzle for third, fourth, and fifth graders!

Solve a sunny, summery sudoku puzzle in this sandcastle-themed puzzle!

Need a fun activity to do on a long drive? Look no further than this tricky sudoku puzzle!

Solve a sweet sudoku puzzle in this Valentine’s Day-themed worksheet for first and second graders!

Give your brain a fun workout as you complete this summery worksheet!

This Valentine’s Day-themed sudoku puzzle is as sweet as can be!

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

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.