In this worksheet, “monkeying around” will help you master counting to 20!

Children can practice counting, ordering, and identifying numbers 1 to 20 with this set of number cards.

Use these vocabulary cards with the EL Support Lesson Plan: Adding Within 20.

Does your little mathematician enjoy the pop of a good balloon? In this sheet, he'll 'pop' balloons that contain addition or subtraction problems that equal 20.

Use this assessment worksheet to determine students’ ability to order numbers from 0 to 20.

Take a deep dive into prime and composite numbers to 20 with this exploratory worksheet!

Kids color and count teacups with the number 20 on this kindergarten math worksheet, which offers practice recognizing and writing whole numbers and counting.

It's time to check those addition skills! Use this to assess your student’s abilities to add within 20.

Let's check in on those subtraction skills! Use this math worksheet to assess your students’ understanding of subtraction by having them solve subtraction problems within 20.

Subtract numbers within 20 using ten frames with this first-grade math worksheet!

On this kindergarten math worksheet, kids trace the number 20, then write their own. Then they count the diamonds they see in the picture and make a graph.

Go cloud-gazing on a nice day, and use this fun cut-out chart to name the types of clouds you see!

Master subtraction under 20 with this bright, inviting practice sheet!

It's time to check in on those addition skills! Use this math activity to assess your students’ understanding of addition by having them solve addition problems within 20.

Master the math of making 10 and 20 with two addends in this helpful addition worksheet!

Add numbers within 20 using ten frames with this first-grade math worksheet!

It’s time for sunny subtraction within 20 using number bonds with this engaging worksheet!

It's time to check in on those subtraction skills! Use this to assess your student’s abilities to subtract within 20.

Use this number line template to give your young mathematicians practice with identifying, counting, and ordering numbers from 0-20.

Practice finding missing numbers while adding within 20 using ten frames!

Do you know how clouds form? Get the basic idea of how moisture in the air can become a cloud.

Kids practice calculating volume using mental math with this cootie catcher.

Give your child practice counting objects with this printable worksheet, which focuses on the numbers 15 through 20.

This worksheet offers fun practice for students as they learn to identify and count numbers 1 to 20.

What's Rapunzel trapped within? Find out by connecting the dots from 1 to 20. Kids also give their fine motor skills a boost while they work.

Use these fun toy themed math problems to assess your students’ ability to solve addition and subtraction problems within 20.

Children are introduced to the basic concepts of cloud formation in this diagramming and fill-in-the-blank activity.

Use these animal themed math problems to assess your students’ ability to solve addition problems within 20.

It’s time for some DIY! Students will be challenged to solve 20 addition and subtraction problems in this friendly worksheet!

Practice counting 1-20 with this fun worksheet, which challenges your child to count the steps to the circus in sequence.