Crack the code and break the ice with these clever riddles!

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

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

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

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

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

Your child can be a code breaker and practice her multiplication skills. Multiply three-digit numbers on this coded math worksheet, and help a math ninja out!

Practice the concept of perfect squares with this fun worksheet. To uncover the code your child will need to determine if each number is a perfect square.

There's a secret code hiding in this worksheet. Use your knowledge of American Sign Language to decode the hidden message.

Secret codes and ninjas make everything more interesting, including subtracting 4-digit numbers!

Practice dividing by two-digit numbers just got a lot more interesting thanks to secret codes and Ninja Aki.

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.

Dig up dino-themed jokes in this delightful worksheet!

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

Your little learner can learn about the heroic Tuskegee Airmen as he hones his reading comprehension skills with this history worksheet.

What kind of music do stones listen to? Solve these four-digit subtraction problems to find out.

Children will solve seven multiplication problems, then use the answers to decode a secret message.

Do you know what a scarecrow’s favorite fruit is? Find out in this hilarious word puzzle!

Discover Earth’s different spheres with this fourth- and fifth-grade earth science activity!

Determine the correct definition and strengthen dictionary skills with this foundational worksheet!