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.

The 11s times tables are fairly simple. Review the pattern for 11s, and then learn a cool new strategy for multiplying bigger numbers by 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.