Uncover a silly summertime joke with this fun code-breaking worksheet for first and second graders!

Celebrate St. Patrick’s Day by cracking a cryptic code!

First and second graders will be cracking codes and cracking up while they uncover this Valentine’s Day joke!

You just won an amazing prize, but it’s locked in a safe! Thankfully, the code is a single integer between -40 and 40, and you’ve got the clues to solve it.

Set your sleuth-in-training on the case with this hidden-message activity.

Put your detective-in-training on the case with this secret-message activity.

Uncover a punny spring joke in this first- and second-grade worksheet!

Decode a fall-themed joke with this fun first- and second-grade worksheet!

Use fruits and vegetables to decode a message in this berry fun activity!

Learn some of the common Morse code prosigns with this fun activity!

Set sail on a secretive sea in this ocean-themed puzzle worksheet for upper elementary students!

Discover a delightful seasonal joke by solving a charming word puzzle!

Decode an Earth Day joke with this engaging worksheet for first and second graders!

Crack the code in this printable phonics worksheet all about words ending in -ng and -nd.

Nikola Tesla was a smart, smart man. Your preschooler needs maybe 0.3 percent of Tesla's intelligence to find the hidden code.

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.

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

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

What has teeth but no mouth? Find out the answer to this and more riddles in this Riddles and Codes worksheet.

Learners will use the alphabet key to unlock the words written in the heart in this playful Valentine's Day puzzle.

Have fun with grammar and decode these scrambled adjectives, all starting with the letter A! This is a great way to work vocabulary and spelling skills.

Learn more about our planet with this fun crossword puzzle for second and third graders!

Try to find each garden-themed term in this word search for first and second graders!

Bundle up for this challenging crossword full of chilly snowflakes and wintry words.

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

Is it just me, or is this worksheet upside down? Have some April Fools' Day fun unlocking this jester's secret message.