Become a decimal detective in this inviting expanded form worksheet!

Decode the secret message Ninja Aki has sent you! He writes his messages in addition and subtraction problems. Solve and unravel his secret ninja message!

Have your second and third graders think like detectives as they crack the code and solve the compound word mystery!

Become a math detective with this inviting first-grade worksheet!

Have your first and second graders try to crack the code and solve the puzzle, one number box at a time!

Each Christmas gift in this math and coloring worksheet contains an addition or subtraction problem that helps your child crack the color 'code.'

Looking for a fun word puzzle? This printable worksheet challenges your child to use logic and counting to crack a secret code!

Kids solve multiplication problems to crack the code and find the egg-laying mystery mammal on this third grade math worksheet.

What can run but can't walk? Reveal the answer to this clever riddle by cracking the number code in this Riddles and Codes worksheet.

Do you avoid stepping on cracks in the road? Have some fun exploring a common childhood superstition!

Can you decode the secret message hidden in these addition problems?

Kids solve addition and subtraction problems with one- and two-digit numbers to crack the code and find the mystery word on this first grade math worksheet.

Looking for a fun math worksheet? This multi-step printable challenges your child to match shapes to their description to crack a secret code!

Kids solve addition and subtraction problems with one- and two-digit numbers to crack the code and find the mystery word on this first grade math worksheet.

Use your addition and decoding skills to solve eight problems in this fun math puzzle!

In this excerpt from our upcoming Spy Math workbook, your kid gets to help secret agent Ian Danger by cracking the code on this mysterious message.

Help our agent Ian Danger crack the safe by re-grouping these combinations of digits!

Help Jane the Hen find her lost eggs by taking a crack at these addition problems.

To solve this math worksheet your kid will need to follow the instructions and use his knowledge of prime numbers.

Review common vocabulary words with this fun and creative color-by-number worksheet!

Stuck on spelling? Take a crack at this engaging worksheet for young readers!

What's both fun and challenging? These Riddles and Codes worksheets, which pack a one-two punch of brain teasers.

Crack the case of the end marks wide open with this first- and second-grade worksheet about statements and questions!

Ever crack a wishbone in half? Or perhaps you feel it's bad luck to spill the salt. Have some fun with food voodoo!

Take a crack at correcting run-on sentences (all based on classic Shakespeare quotes) in this page from one of our upcoming workbooks.

This worksheet will help children identify compound words, by asking them to color-code the words on the page.

Football players use code words, including colors, to communicate with each other. Your child will need to use some codes and colors to find the hidden message.

Kids can practice two-digit addition, then crack a word puzzle using their answers in this 2nd grade math worksheet.

Step right up, Halloween experts! This creepy crossword puzzle is jam-packed with spooky clues and maddening monsters. Can you crack this challenging puzzle?