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.

Practice mixed operations with this fourth-grade math puzzle!

Add a fun twist to math practice with these second- and third-grade addition puzzles!

Addition doesn't have to be puzzling—practice finding sums with these puzzle boxes!

Addition doesn't have to be puzzling—practice finding sums with these second- and third-grade puzzle boxes!

Calling all Sudoku and Ken Ken buffs! Give your student a fun way to practice math and problem solving with these fun puzzles.

Fun Fun puzzles are almost like Ken Ken! These ones are tricky, but very fun to solve. Give your student a fun way to practice simple arithmetic.

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.

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

Put your addition skills to the test with these puzzle boxes for second and third graders!

Put your addition skills to the test with these puzzle boxes for second and third graders! 

Put your addition skills to the test with these puzzle boxes for second and third graders!

Calling all Sudoku and Ken Ken buffs! These math puzzles are tricky, but are a fun and simpler spin-off of the popular Ken Ken puzzle.

Calling all Sudoku and Ken Ken buffs! These math puzzles are tricky, but are a fun and simpler spin-off of the Ken Ken puzzle.

Math maniacs, these challenging puzzles are for you! These four puzzles are tricky, but are a fun and simpler spin-off of the Ken Ken puzzle.

Looking for a way to get your child excited about math? Try these math puzzles, a tricky but fun spin-off of the popular Ken Ken puzzle!

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.

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.

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.

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.

Looking for a way to get your child excited about math? 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.

Shape up those problem solving skills with a fun block puzzle activity, comparable to tangram puzzles!

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.

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

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