Decomposing Numbers Worksheet

The page asks for more than one partition of the same value. Learners use drawings or manipulatives to create one pair of parts, record the corresponding equation, and then find another valid pair. A printed example illustrates that the addends may change while the total remains constant. This repeated comparison builds flexible number sense and introduces the idea that a whole can have several part-part combinations.

Year groups: Years 1–3
File type: PDF
Preparation: Print ready

Updated Feb 19, 2024

Subject: Addition, Addition and Subtraction, Maths
Topic: What Is Decomposing Numbers, Decomposing a Number
Resource types: Worksheets, Worksheets & Printables
Preparation: Print ready

From the author

About this resource

Decomposing printables/worksheets/worksheets-by-subject/maths-worksheets/early-maths-worksheets/numbers-worksheets">Numbers Worksheet This educational maths resource assists young learners in grades K-2 with developing essential skills for understanding place value and basic addition. Students will reinforce their learning by breaking numbers apart into paired components. For example, they may decompose the number 12 into the pairs 6 and 6 or 7 and 5. Teachers can implement this resource in small groups or assign it individually to meet each student's needs. The engaging worksheet format promotes active participation and comprehension. Students will gain confidence with decomposing numbers in multiple ways, preparing them to apply this understanding toward more complex maths concepts. This useful resource supports educators in making maths accessible and hands-on for early elementary students.

In the classroom

Teaching tips & learning objectives

Learning objectives

Break a small number into two addends
Show the same whole in two different ways
Connect a concrete or drawn model with an equation

Teaching tips

Use two colours of counters to make the two parts visible.
Place both equations side by side and discuss what changes and what stays equal.

Skills covered

Part-part-whole reasoning — one value is separated into pairs.
Number flexibility — multiple decompositions represent the same total.
Representation — pictures, objects, and equations communicate equivalent ideas.

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Resource details

Concepts & topics

Core concepts

Number decomposition
Multiple addend pairs
Part-part-whole

Topics

What Is Decomposing Numbers Decomposing a Number

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Categories this resource belongs to

Addition Addition and Subtraction Maths Worksheets Worksheets & Printables Nursery

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