Children will follow the clues to solve a math riddle in this fun number-sense worksheet.

Clues plus riddles? Is this a mystery or a math worksheet?

Challenge your math brain with a tricky worksheet that throws in addition, subtraction, multiplication and division!

Regular math problems will be a piece of cake after you master one of these complex riddles!

You're going to need your whole math brain to solve this tricky worksheet that asks you to fill in the operation.

Ponder place value puzzles in this fourth- and fifth-grade worksheet!

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

Use your logic skills to out what each kid at the costume contest dressed up as! 

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