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

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

Go over adding two-digit numbers to one-digit numbers with this helpful worksheet.

This colorful worksheet allows you to combine your second grader's love of art with at-home addition practice with adding double-digits!

Hurry! If these numbers aren't added quickly using regrouping, they'll pop!

Practice using place value charts to find sums with this addition worksheet for first and second graders!

Use your knowledge of place value to solve addition problems with this first- and second-grade worksheet!

Not only does this worksheet bolster kids' addition skills, it's a great mental math exercise, too.

Tackle two-digit addition with place value charts in this helpful worksheet!

Practice adding doubles with this colorful worksheet!

Give students practice adding three-digit numbers within 1,000! 

Use this visual model to practice adding 10 to two-digit numbers!

Practice adding multi-digit numbers in this second- and third-grade worksheet!

Tristan had 74¢ and Juniper gave him a quarter. How much does he have now? Kids will practice identifying coins and using the part-part-whole concept (number bonds) to solve money word problems in this two-digit addition worksheet.

Practice adding with this third grade addition worksheet. Your child will hone his addition skills.

Practice adding two-digit numbers with this compensation worksheet for second and third graders!

Learners will enjoy stacking and adding two-digit numbers with this appealing practice worksheet.

Learners will enjoy stacking and adding two-digit numbers with this appealing practice worksheet.

With this worksheet, your second graders will be adding up two-digit and three-digit numbers with ease.

Learn how to use doubles facts to solve other addition problems!

Is your child comfortable with adding double-digit numbers? If he's getting there here's a different take on addition problems!

Help students get a grasp on mentally adding or subtracting 10 from a multiple of 10 with this fun BINGO game!

Double the numbers equals double the fun! Practice adding with near-doubles in this engaging math worksheet.

Adding up big numbers can be tricky. Teach your budding mathematician a helpful trick to keep the numbers in line with carrying!