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Kindergarten - 3rd Grade Add by Composing and Decomposing Numbers Worksheets

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.

Number Bonds All Around

Students will practice adding within 10 as they identify the missing numbers on each number bond using the numbers at the bottom of the page.

Fix the Number Bonds

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

Compose and Decompose Within 20

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.

Decompose to Add: Two Digits Within 20

Practice representing 10 using ten frames in this kindergarten addition worksheet!

Make 10 in Ten Frames: Match the Equation #2

Give your young math learner practice composing numbers 11&ndash;19 with this addition strategies worksheet!

Compose 11-19: Ten and Ones #1

Kindergarteners practice representing equations using ten frames in this addition worksheet!

Make 10 in Ten Frames: Match the Equation #1

The second in a series of six, this addition worksheet gives learners more practice composing numbers 11&ndash;19!

Compose 11-19: Ten and Ones #2

Practice using ten frames to make 5 in this early addition worksheet for kindergarteners!

Make 5 in Ten Frames #1

Get more practice using ten frames to make 5 in this early addition worksheet for kindergarteners!

Make 5 in Ten Frames #2

Give learners helpful practice using ten frames with this inviting early addition worksheet!

Make 4 in Ten Frames

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

Make 11–19 in Ten Frames #1

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

Make 11–19 in Ten Frames #2

The last in a series of six, this addition worksheet gives learners more practice composing numbers 11&ndash;19!

Compose 11-19: Ten and Ones #6

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.

Subtraction with Decomposition

Introduce learners to ten frames with this inviting early addition worksheet!

Make 3 in Ten Frames

The third in a series of six, this addition worksheet gives learners more practice composing numbers 11&ndash;19!

Compose 11-19: Ten and Ones #3

Get more practice representing 10 using ten frames in this kindergarten addition worksheet!

Make 10 in Ten Frames: Match the Equation #3

Students will practice adding within five with this fun snowflake worksheet!

Snowflake Bonds

The fifth in a series of six, this addition worksheet gives learners more practice composing numbers 11&ndash;19!

Compose 11-19: Ten and Ones #5

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

Make 11-19: Write the Equation #2

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

Decompose 11-19: Tens and Ones #1

Practice making 6 using&nbsp;ten frames with this kindergarten math worksheet!

Make 6 in Ten Frames #1

Make 11-19: Write the Equation #4

Make 11–19 in Ten Frames #6

The fourth in a series of six, this addition worksheet gives learners more practice composing numbers 11&ndash;19!

Compose 11-19: Ten and Ones #4

Students will practice adding within five as they identify the missing number on each tree number bond and equation!

Tree Bonds

Practice writing addition equations within 20 with this inviting and accessible math worksheet!

Make 11-19: Write the Equation #1

Make 11-19: Write the Equation #3

Students will practice adding within five as they identify the missing number on each whale number bond!

Whale Bonds

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