Decomposing Numbers 10-20 Worksheet
- Grades
- Preschool–Pre-K, Grades 1–2, Elementary
- File type
- Preparation
- Print ready
- Subject
- Math, Addition and Subtraction, Addition
- Topic
- decompose numbers worksheet, numbers 10-20 in french
- Resource types
- Worksheets & Printables, Worksheets
- Preparation
- Print ready
About this resource
What's inside 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.
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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
Core concepts
Decomposing teen numbers
Part-part-whole
Addition equations
Topics
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