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

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

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

Learners will love counting and writing numbers 1–20 in this St. Patrick’s Day themed-worksheet!

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

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

One more vegetable! This worksheet will have your students figuring out what happens when you add one more vegetable to the existing list.

How many hats are in each set? Practice counting 1–20 in this St. Patrick’s Day themed-worksheet!

How many pots of gold are in each set? Practice counting 1–20 in this St. Patrick’s Day themed-worksheet!

Help kids grasp the concept of subtraction by taking one away in this worksheet.

Practice finding numbers that are one less with this hands-on worksheet!

Kindergarten students are excited to practice their addition skills. As they grow to become better mathematicians, use this fun worksheet to help them understand what happens when you add one more.

Help students learn simple addition by exploring the concept of "plus one" in this worksheet.

Children practice counting and comparing amounts in this numbers 1-10 math worksheet.

Test your subtraction skills with this helpful math worksheet!

Cut and paste your way through numbers 1–5 in this hands-on worksheet!

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

Children practice counting numbers 0-20 in this snow day themed worksheet.

Give learners a taste of counting objects from 0-20 in this delicious, pie-themed 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 and accessible math worksheet!

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

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

Learners will have a “berry” good time counting objects from 0-15 in this sweet, pie-themed worksheet!

Children will count bunnies, flowers, chicks, sheep, and Easter eggs in this sweet springtime numbers worksheet.

This caterpillar maze helps kids learn to count from 1 to 15!

Count and add the Halloween pictures in this simple addition worksheet!

Get ready for an egg-citing adventure as young learners dive into this Easter-themed counting worksheet!

Nurture your learner's love for numbers with this spring-themed counting worksheet!

Have kindergarteners and first graders practice their counting skills by filling in the missing numbers on this hundred chart!