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

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

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

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.

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.

Give your preschooler a head start on addition with these simple equations. This worksheet can also be cut to make flashcards for your child.

Kindergarten students are practicing their addition skills! Help them practice adding one more using this helpful worksheet.

Have your little math learner count the number of chicks and add them together for great practice in adding one on this math worksheet.

Practice addition under 20 with visual models in this useful math worksheet!

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

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

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

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

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

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

Get more practice with addition facts within 20 with this colorful kindergarten 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!

Santa's sleigh is filled with toys and candy canes! Can your child count how many are there? Practice simple addition in the spirit of Christmas.

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

Give children a gentle introduction to addition with help from this simple addition worksheet.

Give your child her first lesson in addition with this simple counting worksheet.

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

Your kindergartener will enjoy learning to add with this colorful worksheet that features single-digit addition problems with sums up to 7.

One more and one less. Your students will practice adding in the missing numbers on this worksheet.

Practice decomposing numbers and writing equations with this kindergarten and first-grade math worksheet!

Help your child learn the basic idea behind addition with this leafy math worksheet.