Adding two numbers? Too easy. See if your kindergarten math whiz can add three!

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

If your child is looking for a number challenge, we've got the worksheet for her. She may be a whiz at adding two numbers, but can she add three numbers?

This worksheet takes your child a step farther than one-digit addition. As he completes the page, he'll learn to add a two-digit number to a one-digit number.

Make two-digit addition easier with this inviting worksheet!

Use a visual model to solve these two-digit addition problems!

Challenge your child to add three, four, and five numbers together. He may find the task daunting, but there's a trick to add multiple numbers that will help!

This worksheet teaches you to use base 10 drawings to add two-digit numbers.

Add the different types of shapes in each box to solve the simple addition problems.

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

Give your students simple two-digit numbers to practice the decomposition addition strategy! This can be used as a stand-alone activity or in conjunction with the Composing and Decomposing lesson plan.

Get more practice adding two-digit numbers on open number lines with this inviting addition worksheet!

In this worksheets, learn how to add the tens first when using a hundreds chart.

Learn to break apart numbers and form 10 in this helpful addition worksheet!

Practice adding two-digit numbers on open number lines with this inviting addition worksheet!

Regroup ones into tens to add in this engaging first-grade worksheet!

Jump into addition with this hundred chart worksheet for first and second graders! 

Get more practice adding two-digit numbers on open number lines with this inviting addition worksheet!

Master two-digit addition with these hundred chart problems!

Identify groups of 10 to help you solve these problems!

Test your talent in two-digit addition with this colorful math worksheet!

Give your kids extra addition practice with this worksheet, which teaches them that it's best to focus on the tens first.

Practice place value and addition and see where the two intersect with this hundreds chart that teaches how to add in groups of ten and one.

Practice a helpful strategy for adding single-digit numbers in this worksheet, the second entry in a scaffolded series!

Don’t let two-digit addition intimidate you; instead, use compensation to make friendly tens!

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

Tackle ten frames with confidence in this helpful addition worksheet!

Find friends in trusty tens with this colorful addition worksheet!

Sharpen second graders' hundred chart know-how with this addition worksheet!

Your students have been plugging away at their math skills all year. Now it's time to put those skills to the test! Use this math assessment to check in on your students’ abilities to add 10 to two-digit numbers.