Is your child ready for a parade of practice activities? He'll have some brightly colored fun as he explores writing and recognizing numbers 11-20.

Invite your first grader to enter the world of the teen numbers as she starts writing 11-20. Practice tracing the name of each number before writing it.

So your child has mastered the numbers 1-10 -- what's next? How about a bright and colorful number pyramid that challenges them to tackle numbers 11-20?

Help your child practice his counting skills with this printable kindergarten worksheet, which focuses on the numbers 11 through 20.

Here's a fun coloring activity to help your kindergartener recognize the number 11. Can he find the rabbits with 11 on them and count them up?

Here's a writing and counting activity to introduce your kindergartener to two-digit numbers. She can trace 11 and say her numbers out loud!

How about some hamburgers? Kids can trace number 20, and practice their counting skills with up to 20 hamburgers!

Numbers 1-20 can be as easy as 1-2-3! Assess your students’ understanding of numbers 1 to 20 using this handy worksheet.

This automobile-themed worksheet helps students practice counting the numbers 11–20.

How do you make learning addition and subtraction facts fun? Try your hand at "popping" colorful balloons showing a sum or difference of eleven!

It's a wonderful day for sailing! For this kindergarten math worksheet, kids color and count just the sailboats with the number 11.

On this kindergarten math worksheet, kids trace the number 11, then write their own. Then they count delicious pears and record the information in a graph.

Assess your students’ understanding of subtraction by having them solve subtraction problems within 20.

Find the number 20 among this brood of turkeys down on the farm!

Add it up! Assess your students’ understanding of addition by having them solve addition problems within 20.

This resource will help assess your students' understanding of numbers 1-20.

Give your young math learner practice composing numbers 11–19 with this addition strategies worksheet!

The second in a series of six, this addition worksheet gives learners more practice composing numbers 11–19!

The third in a series of six, this addition worksheet gives learners more practice composing numbers 11–19!

The fourth in a series of six, this addition worksheet gives learners more practice composing numbers 11–19!

The fifth in a series of six, this addition worksheet gives learners more practice composing numbers 11–19!

The last in a series of six, this addition worksheet gives learners more practice composing numbers 11–19!

Adding numbers within 20 is as easy as counting balloons with this colorful and simple worksheet.

Use this glossary with the EL Support Lesson Plan: Adding Within 20.

Get practice with addition facts within 20 with this colorful kindergarten math worksheet!

Gain expertise with addition sentences within 20 in this helpful math worksheet!

Practice writing addition equations within 20 with this inviting and accessible math worksheet!

Get more practice writing addition equations within 20 with this inviting math worksheet!

Get more practice writing addition equations within 20 with this inviting math worksheet!

Use this number line as a tool to practice adding and subtracting within 20.