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Showing Results for composing decomposing

Use this lesson to introduce composing and decomposing as part of your students’ addition and subtraction toolkits.

Composing and Decomposing

Give your students practice decomposing mixed numbers into number bonds.

Practice Decomposing Mixed Numbers

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

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

Why make things harder on ourselves? Teach your students to decompose numbers to make math easier! Use this as a stand alone lesson or a pre-lesson for *Decompose to Multiply: 6, 7, 8, and 9.*

Decomposing Numbers

You know about 2D shapes, now get ready to learn your 3D shapes in this colorful worksheet!

Composing 3D Shapes: Matching

Dissect three-dimensional shapes in this colorful first- and second-grade geometry worksheet!

Composing 3D Shapes: Which Faces?

Discover how structures are built out of individual 3D shapes in this inviting geometry worksheet!

Composing 3D Shapes: Build It

Practice decomposing numbers in this second-grade subtraction worksheet!

Decompose to Subtract From Three-Digit Numbers

Build complex structures out of common three-dimensional shapes in this hands-on worksheet!

Composing 3D Shapes: Cut and Paste

Build structures with shapes to practice geometry in this colorful worksheet!

Composing 3D Shapes: Which One Am I?

Assemble block towers out of simple shapes in this colorful geometry worksheet!

Building 3D Shapes

Match the two-dimensional net to the three-dimensional shape in this engaging geometry worksheet!

Name that Net! 3D Shapes

Solve double-digit subtraction problems with ease in this second- and third-grade worksheet!

Subtract Using Decomposition: Make a New Equation #1

Learn the area models division strategy with this helpful two-page worksheet for fourth and fifth graders!

Divide Using Area Models: Divide in Parts

Practice fluency by building a flourishing city in this second-grade worksheet!

Build a City: Compose Numbers 17–18

Practice the decomposition method of subtraction in this accessible worksheet!

Subtract Using Decomposition: Make a Number Line Model #1

Learn to use the decomposition strategy as you solve subtraction problems!

Subtracting Multiples of 10 Using Decomposition

Practice using the decomposition strategy to solve two-digit subtraction problems in this helpful worksheet for second graders!

Subtraction With Regrouping Using Decomposition #3

Practice solving multiplication problems using the partial product method!

Multiplying Using Partial Products: 4-Digit by 1-Digit

Master multi-digit subtraction with this informative third-grade math worksheet!

Subtracting by Place Value: 3-Digit Numbers

Enhance your multi-digit multiplication skills with this scaffolded worksheet!

Multiplying Using Partial Products: 3-Digit by 1-Digit

Try using the partial products method to solve multiplication problems with this helpful worksheet!

Multiplying Using Partial Products: 2-Digit by 1-Digit

Start a dialogue around area models! In this lesson, encourage students to ask questions as they multiply using area models. Use this lesson on its own or as support to the lesson Area Models and Multiplication.

Area with Multiplying and Adding

Help your students subtract with confidence by sharing two different strategies. Use this lesson to build on students’ understanding of subtraction and to evaluate this key skill.

Subtraction with Regrouping

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