Every child loves to communicate in secret code! Learn the Morse Code alphabet with this great printable.

That's an awful lot of oranges, but we're only looking for 18. Can your child count out the right amount?

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

Decode the history of Morse code with this reading comprehension activity.

Get a fun review of math facts, and try your hand at "popping" colorful balloons with equations that equal the number eighteen.

In this exercise your students will color code the key components of an example informative paragraph.

On this kindergarten math worksheet, kids trace the number 18, then write their own. Then they count the squares they see in the picture and make a graph.

Covering addition and subtraction facts up to 18, this quick practice test offers a great review.

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

It's raining! It's pouring! (But we don't hear any snoring!) For this kindergarten math worksheet, kids color and count the raindrops with the number 18.

Some of your friends' Valentine's Day notes need to be delivered! Practice sequencing numbers by putting this group of 18 consecutive numbers in order.

Crack the secret code and uncover the hidden message with this playful, phonics activity!

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

Can you crack the code? Early learners turn into beginning letter sound detectives as they use picture clues to reveal a mystery sentence.

Practice addition within 10 using ten frames with the help of this addition strategies worksheet! 

Practice addition within 10 using ten frames with the help of this addition strategies worksheet! 

Practice addition within 10 using ten frames with the help of this addition strategies worksheet! 

Help your 2nd grader crack the code using triple digit addition and subtraction to find out what parts of camels can be used to make some tasty dishes.

Practice representing 10 using ten frames in this kindergarten addition worksheet!

Get more practice representing 10 using ten frames in this kindergarten addition worksheet!

How many ways can you add up to ten? In this worksheet, kids practice making ten by filling in the missing number in each equation to make it equal ten.

Get your kid started on mastering the concept of base 10 with this base 10 blocks worksheet. Base 10 makes it easy for kids to visualize numbers big and small.

Each ten frame has ten boxes. Some boxes have red chips and others don't. If the top half of the ten frame is filled with red chips, how many are left? 10-5=5.

In this worksheet, students solve problems to figure out 10 less.

Kids completing this third grade math worksheet multiply by 10 to solve each equation and also fill in a multiplication chart for the number 10.

Groups of ten make addition a breeze! Use this nifty worksheet to learn about the "circle ten" shortcut.

This outer space visitor needs help finding shapes! Can your child help? He'll need to identify and color code all the different shapes in the worksheet.

Tackle ten frames with confidence in this helpful addition worksheet!

Use this handy ten frame mat worksheet to support your students as they learn to count!

Subtract from 10 using ten frames in this cut-and-paste worksheet created for kindergarteners and first graders!