Teach your students to solve word problems with three addends. Plenty of space is provided for students to show their thinking!

It’s time for students to make their own number bonds! In this activity, students will be given number sentences to solve and represent using number bonds.

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.

Use the mat to give students extra practice composing a 10 as they learn to add to 20.

Students use open number lines to help them write addition equations in this first-grade practice worksheet!

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

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

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.

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.

Number bonds are a great way for your kids to explore the relationship between addition and subtraction. By filling in the missing numbers, students get experience with fact families.

Let's see those addition skills! Use this math assessment to check in on your students’ abilities to add three numbers by having them solve these problems.

Students learn to decompose numbers through this fun activity. After being given a number, young mathematicians come up with their own way to decompose the number into two different numbers.

Build number sense and familiarity with numbers 1–120 with this fun game! Students will roll a die and move that many more spaces. The first player to reach 120 wins!

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.

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.

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.

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

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

Make two-digit addition easier with this inviting worksheet!