Decomposing Numbers 10-20 Worksheet

- Year groups
- Years 1–3
- File type
- Preparation
- Print ready
- Subject
- Addition, Addition and Subtraction, Maths
- Topic
- Decompose Numbers Worksheet, Numbers 10-20 in French
- Resource types
- Worksheets, Worksheets & Printables
- Preparation
- Print ready
From the author
About this resource
This Decomposing Numbers 10-20 Worksheet is a great way for students to practice decomposing numbers. By writing equations for each number, they can see the pictures that you drew and better understand the concept.
In the classroom
Teaching tips & learning objectives
Learning objectives
Represent a teen number as two parts
Draw quantities that match an addition equation
Verify that decomposed parts recombine to the original number
Teaching tips
Encourage a ten-and-some-more drawing before exploring alternative pairs.
Count both picture groups and compare their total with the equation.
Skills covered
Number decomposition — a whole is separated into addends.
Visual-symbolic connection — drawings correspond with equations.
Teen-number structure — values above ten are analyzed in parts.
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Resource details
Concepts & topics
Core concepts
Decomposing teen numbers
Part-part-whole
Addition equations
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