Is your math whiz up to the challenge? She'll have to use logic and reasoning skills to solve this tricky addition puzzle!

This addition and subtraction KenKen® puzzle is a perfect challenge!

Challenge your second grader with some 2-digit addition review using this addition crossword!

This 4x4 multiplication puzzle is perfect for a beginner who would like a challenge!

Does your child love a good challenge? This multiplication KenKen® puzzle is a difficult one!

Challenge your child to count by twos with this fun worksheet, and connect the dots to reveal the hidden picture!

If your preschooler can recognize shapes and sizes, give him the extra challenge of recognizing subtly different colors with this worksheet.

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

Take the block puzzle challenge! This series of tangram-style geometry puzzles is a great way to build logic skills in your kindergartener.

Challenge your child to count from 1-20 with this horse dot to dot worksheet, and connect the dots to reveal the hidden picture!

Get ready for a tangram challenge! Build math and reasoning skills by using all tangram shapes to re-create the picture on this page.

Subtract your way to the end of a maze, with the added challenge of drawing your path along the answers in order from 10 to 1.

Little math stars, get ready for a tangram challenge! Students will use all seven tangram shapes to re-create the picture on this page.

Challenge your first grader by having her connect the dots from 1 to 50 to complete the picture of the friendly lion.

Hey math whizzes, here is a challenge for you! These math puzzles are tricky, but are a fun spin-off of the popular Ken Ken puzzle.

Are your math student ready for a challenge? They will need addition, subtraction, multiplication, and division in order to solve this KenKen® puzzle!

Hey math buffs, do you need a challenge? These math puzzles are tricky, but are a fun and simpler spin-off of the Ken Ken puzzle.

Is your child a math whiz who needs a challenge? These math puzzles are tricky, but are a fun and simpler spin-off of the Ken Ken puzzle.

This is for all you math whizzes who need a challenge! These math puzzles are tricky, but are a fun and simpler spin-off of the Ken Ken puzzle.

If your child is mad for math, give him a challenge! These math puzzles are tricky, but are a fun and simpler spin-off of the Ken Ken puzzle.

If your student needs a challenge in math, try these math puzzles! These math grids are tricky, but are a fun spin-off of the popular Ken Ken puzzle.

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.

Are you ready for a connect-the-dots challenge? See if your math whiz can connect all nine dots using only four lines and never lifting their pen from the paper.

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