It's time to check those addition skills! Use this to assess your student’s abilities to add within 20.

Give your young mathematicians practice with number bonds and number sentences in this visually interesting worksheet that has students composing and decomposing 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.

Let's see how those addition skills have blossomed over the course of the year! Use this quick math assessment to gauge your students' abilities to add three-digit numbers, both with and without regrouping.

Help your students apply strategies when solving addition problems. This worksheet provides practice for using number lines to solve addition problems with three-digit numbers.

Practice addition within 10 with this Halloween math workheet!

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

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

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

The decomposing and composing subtraction strategy can be a handy tool for tough three-digit numbers. Use this worksheet to give your students the practice they need to nail down the concept.

In this worksheet, kids take turns rolling dice, practicing addition, and writing in numbers.

Use these strategy cards to help students develop their compare and contrast skills, along with deepening their understanding of three-digit addition.

Use this glossary with the EL Support Lesson Plan: Mental Math Bingo with Multiples of 10.

Get more practice exploring properties of operations while writing addition equations in this second-grade math worksheet!

Continue exploring properties of operations while writing addition equations in this second-grade math worksheet!

Represent tens and ones with crayons in this fun worksheet.

Introduce this graphic organizer as a way to help students think about whether or not certain rules or characteristics apply to mathematical ideas always, sometimes, or never.

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

Represent ones and tens with crayons in this fun worksheet.

What do cows like to listen to? To find the answer to this riddle, your kids will need to sharpen their skills in basic addition. So saddle up and let those addition skills go wild!

Use this glossary with the EL Math Support Lesson: Multiples of 10.

Use these vocabulary cards with the EL Support Lesson Plan: Mental Math Bingo with Multiples of 10.

Use these vocabulary cards with the EL Math Support Lesson: Multiples of 10.

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

Use this glossary with the EL Support Lesson Plan: Comparing Strategies for Three-Digit Addition.

Should this Christmas present be red, yellow, or green? It's up to your young mathematician to find out in this Christmas math and color-by-number worksheet.