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Addition & Subtraction Sentences within 20 | Part-Part-Whole Worksheets
Addition & Subtraction Sentences within 20 | Part-Part-Whole Worksheets
Addition & Subtraction Sentences within 20 | Part-Part-Whole Worksheets
Addition & Subtraction Sentences within 20 | Part-Part-Whole Worksheets
Addition & Subtraction Sentences within 20 | Part-Part-Whole Worksheets
Addition & Subtraction Sentences within 20 | Part-Part-Whole Worksheets
Addition & Subtraction Sentences within 20 | Part-Part-Whole Worksheets
Addition & Subtraction Sentences within 20 | Part-Part-Whole Worksheets
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Description

⭐️ Give your students meaningful practice with these Part-Part-Whole Worksheets designed for addition and subtraction within 20. Learners use number bonds to write fact family equations, reinforcing the relationship between parts and wholes while strengthening number sense.

This resource is ideal for Grade 1 math, helping students build fluency with addition and subtraction facts in a structured, visual way. Use for classwork, centers, small groups, homework, or intervention. Answer keys are included for easy checking.

Aligned with CCSS 1.OA.C.5, 1.OA.C.6, and 1.OA.D.8, these worksheets support fluency, problem-solving, and equation building.

🎯 Objectives / Skills Covered

  • Write addition sentences using part-part-whole models
  • Write subtraction sentences using part-part-whole models
  • Understand and apply fact families
  • Strengthen number sense within 20
  • Build fluency and accuracy in addition and subtraction

📚 WHAT’S INCLUDED

  • 10 worksheets for Addition Sentences (within 20)
  • 10 worksheets for Subtraction Sentences (within 20)
  • Fact family practice using part-part-whole models
  • Answer Keys included for all worksheets

💡 How to Use

  • Classwork or Guided Practice – introduce part-part-whole addition & subtraction
  • Math Centers – perfect for independent or partner work
  • Homework – extra practice at home
  • Small Groups / Intervention – reteach number bonds and fact families
  • Quick Checks or Assessments – monitor student mastery of addition and subtraction facts

❤️ Why Teachers Love It

No-prep and ready-to-use – just print and go

✔ Builds confidence with addition and subtraction fluency

✔ Visual part-part-whole models make learning easy to understand

✔ Perfect for centers, small groups, homework, or intervention

✔ Includes answer keys for quick grading and student self-checking


⭐️ THANK YOU SO MUCH FOR VISITING MY STORE! ⭐️

I truly appreciate your support and hope my resources make teaching easier and learning more fun for your students.

Don’t forget to FOLLOW MY STORE for updates, sales, and new product releases!

Report this resource to TPT
Reported resources will be reviewed by our team. Report this resource to let us know if this resource violates TPT's content guidelines.

Addition & Subtraction Sentences within 20 | Part-Part-Whole Worksheets

MrRay's Classroom Math
8 Followers
$3.90

Highlights

Digital downloads
Grades icon
Grades
PreK - 1st
Standards icon
Standards
Pages
20
Answer Key
Included

Save even more with bundles

Addition & Subtraction Within 20 | Bundle 12 ActivitiesNumber Sense, Fact Fluency, Number Line, Missing Numbers, Part-Part-Whole & Math Puzzles | Grade 1 MathBuild strong foundational math skills with this comprehensive Addition & Subtraction Within 20 Bundle! This engaging collection of
Price $32.25Original Price $46.05Save $13.80
12

Description

⭐️ Give your students meaningful practice with these Part-Part-Whole Worksheets designed for addition and subtraction within 20. Learners use number bonds to write fact family equations, reinforcing the relationship between parts and wholes while strengthening number sense.

This resource is ideal for Grade 1 math, helping students build fluency with addition and subtraction facts in a structured, visual way. Use for classwork, centers, small groups, homework, or intervention. Answer keys are included for easy checking.

Aligned with CCSS 1.OA.C.5, 1.OA.C.6, and 1.OA.D.8, these worksheets support fluency, problem-solving, and equation building.

🎯 Objectives / Skills Covered

  • Write addition sentences using part-part-whole models
  • Write subtraction sentences using part-part-whole models
  • Understand and apply fact families
  • Strengthen number sense within 20
  • Build fluency and accuracy in addition and subtraction

📚 WHAT’S INCLUDED

  • 10 worksheets for Addition Sentences (within 20)
  • 10 worksheets for Subtraction Sentences (within 20)
  • Fact family practice using part-part-whole models
  • Answer Keys included for all worksheets

💡 How to Use

  • Classwork or Guided Practice – introduce part-part-whole addition & subtraction
  • Math Centers – perfect for independent or partner work
  • Homework – extra practice at home
  • Small Groups / Intervention – reteach number bonds and fact families
  • Quick Checks or Assessments – monitor student mastery of addition and subtraction facts

❤️ Why Teachers Love It

No-prep and ready-to-use – just print and go

✔ Builds confidence with addition and subtraction fluency

✔ Visual part-part-whole models make learning easy to understand

✔ Perfect for centers, small groups, homework, or intervention

✔ Includes answer keys for quick grading and student self-checking


⭐️ THANK YOU SO MUCH FOR VISITING MY STORE! ⭐️

I truly appreciate your support and hope my resources make teaching easier and learning more fun for your students.

Don’t forget to FOLLOW MY STORE for updates, sales, and new product releases!

Report this resource to TPT
Reported resources will be reviewed by our team. Report this resource to let us know if this resource violates TPT's content guidelines.

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Questions & Answers

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Standards

to see state-specific standards (only available in the US).
Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
Apply properties of operations as strategies to add and subtract. If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.)
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