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Finding the Missing Addend to Make Equivalent Number Sentences
Finding the Missing Addend to Make Equivalent Number Sentences
Finding the Missing Addend to Make Equivalent Number Sentences
Finding the Missing Addend to Make Equivalent Number Sentences
Finding the Missing Addend to Make Equivalent Number Sentences
Finding the Missing Addend to Make Equivalent Number Sentences
Finding the Missing Addend to Make Equivalent Number Sentences
Finding the Missing Addend to Make Equivalent Number Sentences
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Description

Finding the Missing Addend to Make Equivalent Number Sentences

Help your students deepen their understanding of the equal sign as a symbol of balance with this hands-on math activity designed to reinforce equivalent number sentences! This resource is perfect for your guided math groups, math centers, or Montessori-inspired classroom. Students find the missing addend in a number sentence by building and comparing two expressions, fostering both number sense and problem-solving skills.

Skills Targeted:

  • Understanding the meaning of the equal sign
  • Identifying equivalent expressions
  • Practicing addition facts and finding missing addends
  • Using hands-on tools to build number sense

✅ What’s Included:

  • Problem strip cards for building number sentences
  • Designed for use with the Montessori Addition Strip Board (optional)
  • Can also be used with red and blue counting cubes or other math manipulatives
  • Student recording sheet to show their work and track understanding

Classroom Ideas:

  • Small group math instruction
  • Independent math centers
  • Intervention or enrichment
  • Hands-on practice with equations
  • Perfect for first grade, kindergarten, or Montessori lower elementary

This engaging math activity helps students see the relationship between numbers and truly grasp what it means for two expressions to be equal — a critical foundation for success in algebra later on!

Also Available:

Finding Missing Addends With Addition Tape Diagrams | TPT

Finding Missing Addends Using Blue and Red Colorful Cubes | TPT

Finding Missing Addends Using Colorful Cubes by Engaging Education Materials

Finding Missing Addends Using Colorful Teddy Bear Counters | TPT

Missing Addends Beginner Word Problems by Engaging Education Materials

Addition Facts Up to Ten Using Tape Diagrams by Engaging Education Materials

Addition Facts Using Tape Diagrams and the Montessori Number Rods

Enjoy!

Engaging Education Materials

Copyright © 2016 Engaging Education Materials

All rights reserved by author.

For classroom use only. This copy is to be used by a single teacher. Please purchase one license per teacher using this product.

Search-Friendly Keywords:

missing addend activity, equivalent number sentences, Montessori math addition, equal sign understanding, strip board math cards, finding the missing part, hands-on math center, Montessori-inspired addition work, balance equations first grade, addition number bonds

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.

Finding the Missing Addend to Make Equivalent Number Sentences

Engaging Education Materials
1.8k Followers
$1.50

Highlights

Digital downloads
Standards icon
Standards
Pages
4
Answer Key
Not Included

Description

Finding the Missing Addend to Make Equivalent Number Sentences

Help your students deepen their understanding of the equal sign as a symbol of balance with this hands-on math activity designed to reinforce equivalent number sentences! This resource is perfect for your guided math groups, math centers, or Montessori-inspired classroom. Students find the missing addend in a number sentence by building and comparing two expressions, fostering both number sense and problem-solving skills.

Skills Targeted:

  • Understanding the meaning of the equal sign
  • Identifying equivalent expressions
  • Practicing addition facts and finding missing addends
  • Using hands-on tools to build number sense

✅ What’s Included:

  • Problem strip cards for building number sentences
  • Designed for use with the Montessori Addition Strip Board (optional)
  • Can also be used with red and blue counting cubes or other math manipulatives
  • Student recording sheet to show their work and track understanding

Classroom Ideas:

  • Small group math instruction
  • Independent math centers
  • Intervention or enrichment
  • Hands-on practice with equations
  • Perfect for first grade, kindergarten, or Montessori lower elementary

This engaging math activity helps students see the relationship between numbers and truly grasp what it means for two expressions to be equal — a critical foundation for success in algebra later on!

Also Available:

Finding Missing Addends With Addition Tape Diagrams | TPT

Finding Missing Addends Using Blue and Red Colorful Cubes | TPT

Finding Missing Addends Using Colorful Cubes by Engaging Education Materials

Finding Missing Addends Using Colorful Teddy Bear Counters | TPT

Missing Addends Beginner Word Problems by Engaging Education Materials

Addition Facts Up to Ten Using Tape Diagrams by Engaging Education Materials

Addition Facts Using Tape Diagrams and the Montessori Number Rods

Enjoy!

Engaging Education Materials

Copyright © 2016 Engaging Education Materials

All rights reserved by author.

For classroom use only. This copy is to be used by a single teacher. Please purchase one license per teacher using this product.

Search-Friendly Keywords:

missing addend activity, equivalent number sentences, Montessori math addition, equal sign understanding, strip board math cards, finding the missing part, hands-on math center, Montessori-inspired addition work, balance equations first grade, addition number bonds

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.

Reviews

4.8
Rated 4.83 out of 5, based on 58 reviews
58
ratings
5
52
4
5
3
1
2
0
1
0
Mostly used with 1st grade
Reviews
1
4
2
1
K
1st
2nd
3rd
4th
5th
6th
All verified TPT purchases
Rated 4 out of 5
June 21, 2025
Very good resource to consolidate and practise the skill. Fun fast finisher activity.
Amy W.
247 reviews
Grades taught: 2nd
Rated 5 out of 5
May 15, 2025
These were fun to use as a warm-up for small math groups.
Alise A.
62 reviews
Grades taught: 1st
Rated 5 out of 5
February 24, 2024
Great for reinforcing addition facts and finding missing numbers.
Camille J.
653 reviews
Grades taught: 1st
Rated 5 out of 5
October 25, 2022
This is a great tool to use with my self- contained students.
Megan Burney
(TPT Seller)
272 reviews
Grades taught: 6th, 7th, 8th
Student populations: Autism, Learning difficulties, Mild to severe disabilities
Rated 3 out of 5
August 30, 2022
This resource was extremely helpful in providing what I needed for my students.
Janita O.
23 reviews
Rated 5 out of 5
July 12, 2022
Fantastic!
Joy M.
395 reviews
Grades taught: 1st
Rated 4 out of 5
July 12, 2022
Great worksheets to practice early algebra skills!
Stephanie Hazaras
(TPT Seller)
283 reviews
Grades taught: 1st, 2nd
Rated 5 out of 5
July 2, 2022
Excellent!
Sandra O.
578 reviews
Grades taught: K

Questions & Answers

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Standards

to see state-specific standards (only available in the US).
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.)
Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false. For example, which of the following equations are true and which are false? 6 = 6, 7 = 8 - 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2.
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