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2nd Grade Math Three Digit Addition Within 1000 With Regrouping Worksheets Games
2nd Grade Math Three Digit Addition Within 1000 With Regrouping Worksheets Games
2nd Grade Math Three Digit Addition Within 1000 With Regrouping Worksheets Games
2nd Grade Math Three Digit Addition Within 1000 With Regrouping Worksheets Games
2nd Grade Math Three Digit Addition Within 1000 With Regrouping Worksheets Games
2nd Grade Math Three Digit Addition Within 1000 With Regrouping Worksheets Games
2nd Grade Math Three Digit Addition Within 1000 With Regrouping Worksheets Games
2nd Grade Math Three Digit Addition Within 1000 With Regrouping Worksheets Games
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What others say

"This resource was exactly what I needed for my 2nd graders! It’s well-organized, easy to prep, and thoughtfully designed to support student engagement and learning. The visuals are bright but clean, and the directions are clear for both teachers and students."
star
Lindsay R.
"I love how easy it was to use this resource in my classroom. The materials were well-designed, and my students responded really well to them"
star
Angelica A.

Description

This Second Grade Mindful Math Three Digit Addition unit is a comprehensive math curriculum that was designed to be teacher and student-friendly and includes 8 lessons to teach adding three digit numbers (adding one hundred more to any number, open number line addition, using base ten models to add, drawing models to add, split strategy (expanded form), shortcut strategy (compensation), traditional algorithm, and one and two-step addition word problems).

⭐It was created to give teachers a ready-to-teach math curriculum that is fun, engages minds, and leaves students knowledgeable and fluent in math concepts.

⭐Go from boring, complicated math to lessons that are enjoyable, effective, and easy to use. This comprehensive, differentiated unit has everything you need to teach the second-grade standards.

⭐This ready-to-teach unit of teacher-tested, hands-on math curriculum provides teachers with EVERYTHING they need to teach 2nd grade math with no need to supplement from other sources.

⭐ Save 40% on This Second Grade Math Unit! ⭐

This complete 2nd Grade Math Unit includes 8 ready-to-teach lessons, engaging activities, and assessments for just $12 (regularly $20).

💡 Looking for a full year of math instruction? Get all 10 units and save 60% with the Second Grade Math Curriculum Bundle!

❤️Mindful MATH for 2nd Grade has what teachers LOVE!

  • Easy to implement, effective lessons and activities that kids enjoy!
  • Detailed, easy-to-teach lesson plans that take the guesswork out of what to teach!
  • ALL lesson materials are provided, so you don't have to waste time gathering supplies!
  • "I CAN" and concept posters to introduce topics so your students understand concepts more easily!
  • Extra items like number talks, discussion questions, vocabulary posters, and more!
  • A variety of activities for every lesson (math games and centers) to keep engagement high!
  • Build math skills and develop fluency with math journals, task cards, mental math, and TONS of differentiated practice worksheets!
  • 4 types of assessments - Quick Check review cards, Pre and Post Tests for every lesson, and a unit test so you can check that your students understand what they need to know!

✔️Lessons Included in 3-Digit Addition 2nd Grade:

  1. Mentally Add 100 to a Number
  2. Using Concrete Models and Drawings to Add Three Digit Numbers
  3. Using Drawings of Base Ten Models to Add Three Digit Numbers
  4. Using the "Jump" Strategy to Add (Open Number Lines)
  5. Using the "Split" Strategy to Add (Break Apart/Expanded Form)
  6. Using the "Shortcut" Strategy to Add (Compensation/"Friendly" Numbers)
  7. Using the Traditional Algorithm to Add
  8. Solving 1 & 2 Step Word Problems

✔️ A few of the ENGAGING & MINDS-ON activities included in the 3-Digit Addition unit:

  • Task cards
  • "I Can" concept posters
  • Interactive math journal pages
  • Printable practice pages
  • Sorts
  • Adding mats and cards
  • Matching activities
  • Scoot games
  • Book suggestions
  • Pre & post-tests for every lesson
  • Interactive games & centers
  • & much MORE!

Check out the preview for a closer look at what this resource provides!

✏️ Lesson Overview & Plans: Comprehensive lesson plans with clear instructions for whole group lessons, individual practice, and follow-up activities. Includes goals, vocabulary, materials list, and book suggestions.

✏️ Unit Overview: Includes 10 lessons that can be broken down to multiple days of instruction aligned with US Common Core, B.C., and Ontario curriculum standards.

✏️ Lesson Materials: All necessary materials, including math manipulatives like number lines and charts, are provided to support each lesson.

✏️ "I Can" Posters & Vocabulary Posters: Includes “I Can” concept posters for every lesson and vocabulary posters in color and B&W for classroom display.

✏️ Warm-Up Task Cards: Short, independent math activities that build fluency and reinforce previous lessons.

✏️ Journal Prompts: Perfect for warm-ups, extra practice, or homework. These prompts review concepts from the previous lesson.

✏️ Number Talks: Open-ended math questions with speaking prompts to encourage whole group discussion and interaction. Slides areprovided for easy display!

✏️ Mental Math Flash Cards: Designed for quick recall and to build mental math skills, suggested for whole group warm-up activities.

✏️ Practice Worksheets: Printable pages for independent practice, with varying difficulty levels to allow for differentiation.

✏️ Hands-On Activities (Math Centers and Games): Includes math games, activities, and centers with instructions, available in color and B&W. Instruction pages also provided.

✏️ Assessments: Quick Checks, pre and post-tests, and unit test for both informal and formal assessment, plus a tracking template for scores.

✏️ Supplemental Materials: Includes answer keys for the worksheets and tests, a suggested book list, and extra pages with Canadian-specific content and spelling.

Note:

  • US Buyers: Aligned with US Common Core standards, focusing on second-grade skills.
  • Canadian Buyers: Aligns with B.C. and Ontario curriculum standards, with additional pages for Canadian content. A separate PDF is provided.

⭐️Math Common Core Standards covered in this unit:

  • CCSS.2.NBT.B.7
  • CCSS.2.NBT.B.8
  • CCSS.2.NBT.B.9
  • CCSS.MP1
  • CCSS.MP2
  • CCSS.MP3
  • CCSS.MP4
  • CCSS.MP5
  • CCSS.MP6
  • CCSS.MP7
  • CCSS.MP8


TEACHERS LIKE YOU SAID...

⭐️⭐️⭐️⭐️⭐️ Abbey C. says, "I absolutely love how planned out the Mindful Math lessons are! My students really grasp the materials since there are so many different ways to teach and assess! This is my go to when teaching skills that are difficult to master!"


⭐️⭐️⭐️⭐️⭐️ Julia H. says, "Finally found a unit that teaches 3-digit addition thoroughly and in a progression that makes sense to my students. They learned all the strategies before the traditional algorithm, so by the time we got to that, they understood WHY they were doing what they were doing. Loved this!"

⭐️⭐️⭐️⭐️⭐️ Mary P. says, "I am so excited that I found this amazing resource. It made planning a breeze! Thank you for sharing your work with others."

⭐️ Want the best value? Save 60% with the 2nd Grade Mindful Math Curriculum Bundle! Get 10 units, 75 lessons, and a full year of math instruction while saving compared to purchasing units separately. Check out the bundle listing to see everything included. ⭐️

You might also be interested in!

Check out other second grade Mindful Math units.

Stay connected with Proud to be Primary

♥Never miss a sale or new release! Click the star to follow my store!

Join our email list and get exclusive content and FREE resources.

♥Visit our website at Proud to be Primary for engaging ideas!

Have a question or need help with a file?

Visit the FAQs section, submit a help ticket, or ask a question on the Q& A tab before leaving feedback. Please ask all questions before purchasing.

Terms of Use: This product is licensed for single classroom use ONLY unless multiple licenses are purchased. Your purchase grants you a license to use in a secure, password-protected online platform (such as Google Classroom) with your students only. You may not transfer or share with another teacher or use it for commercial purposes (Outschool, etc.).

Copyright ©2013 to Present - Proud to be Primary - Elyse Rycroft

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.

2nd Grade Math Three Digit Addition Within 1000 With Regrouping Worksheets Games

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Highlights

Standards icon
Standards
Pages
350+
Answer Key
Included
Teaching Duration
1 month

What others say

"This resource was exactly what I needed for my 2nd graders! It’s well-organized, easy to prep, and thoughtfully designed to support student engagement and learning. The visuals are bright but clean, and the directions are clear for both teachers and students."
star
Lindsay R.
"I love how easy it was to use this resource in my classroom. The materials were well-designed, and my students responded really well to them"
star
Angelica A.

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Description

This Second Grade Mindful Math Three Digit Addition unit is a comprehensive math curriculum that was designed to be teacher and student-friendly and includes 8 lessons to teach adding three digit numbers (adding one hundred more to any number, open number line addition, using base ten models to add, drawing models to add, split strategy (expanded form), shortcut strategy (compensation), traditional algorithm, and one and two-step addition word problems).

⭐It was created to give teachers a ready-to-teach math curriculum that is fun, engages minds, and leaves students knowledgeable and fluent in math concepts.

⭐Go from boring, complicated math to lessons that are enjoyable, effective, and easy to use. This comprehensive, differentiated unit has everything you need to teach the second-grade standards.

⭐This ready-to-teach unit of teacher-tested, hands-on math curriculum provides teachers with EVERYTHING they need to teach 2nd grade math with no need to supplement from other sources.

⭐ Save 40% on This Second Grade Math Unit! ⭐

This complete 2nd Grade Math Unit includes 8 ready-to-teach lessons, engaging activities, and assessments for just $12 (regularly $20).

💡 Looking for a full year of math instruction? Get all 10 units and save 60% with the Second Grade Math Curriculum Bundle!

❤️Mindful MATH for 2nd Grade has what teachers LOVE!

  • Easy to implement, effective lessons and activities that kids enjoy!
  • Detailed, easy-to-teach lesson plans that take the guesswork out of what to teach!
  • ALL lesson materials are provided, so you don't have to waste time gathering supplies!
  • "I CAN" and concept posters to introduce topics so your students understand concepts more easily!
  • Extra items like number talks, discussion questions, vocabulary posters, and more!
  • A variety of activities for every lesson (math games and centers) to keep engagement high!
  • Build math skills and develop fluency with math journals, task cards, mental math, and TONS of differentiated practice worksheets!
  • 4 types of assessments - Quick Check review cards, Pre and Post Tests for every lesson, and a unit test so you can check that your students understand what they need to know!

✔️Lessons Included in 3-Digit Addition 2nd Grade:

  1. Mentally Add 100 to a Number
  2. Using Concrete Models and Drawings to Add Three Digit Numbers
  3. Using Drawings of Base Ten Models to Add Three Digit Numbers
  4. Using the "Jump" Strategy to Add (Open Number Lines)
  5. Using the "Split" Strategy to Add (Break Apart/Expanded Form)
  6. Using the "Shortcut" Strategy to Add (Compensation/"Friendly" Numbers)
  7. Using the Traditional Algorithm to Add
  8. Solving 1 & 2 Step Word Problems

✔️ A few of the ENGAGING & MINDS-ON activities included in the 3-Digit Addition unit:

  • Task cards
  • "I Can" concept posters
  • Interactive math journal pages
  • Printable practice pages
  • Sorts
  • Adding mats and cards
  • Matching activities
  • Scoot games
  • Book suggestions
  • Pre & post-tests for every lesson
  • Interactive games & centers
  • & much MORE!

Check out the preview for a closer look at what this resource provides!

✏️ Lesson Overview & Plans: Comprehensive lesson plans with clear instructions for whole group lessons, individual practice, and follow-up activities. Includes goals, vocabulary, materials list, and book suggestions.

✏️ Unit Overview: Includes 10 lessons that can be broken down to multiple days of instruction aligned with US Common Core, B.C., and Ontario curriculum standards.

✏️ Lesson Materials: All necessary materials, including math manipulatives like number lines and charts, are provided to support each lesson.

✏️ "I Can" Posters & Vocabulary Posters: Includes “I Can” concept posters for every lesson and vocabulary posters in color and B&W for classroom display.

✏️ Warm-Up Task Cards: Short, independent math activities that build fluency and reinforce previous lessons.

✏️ Journal Prompts: Perfect for warm-ups, extra practice, or homework. These prompts review concepts from the previous lesson.

✏️ Number Talks: Open-ended math questions with speaking prompts to encourage whole group discussion and interaction. Slides areprovided for easy display!

✏️ Mental Math Flash Cards: Designed for quick recall and to build mental math skills, suggested for whole group warm-up activities.

✏️ Practice Worksheets: Printable pages for independent practice, with varying difficulty levels to allow for differentiation.

✏️ Hands-On Activities (Math Centers and Games): Includes math games, activities, and centers with instructions, available in color and B&W. Instruction pages also provided.

✏️ Assessments: Quick Checks, pre and post-tests, and unit test for both informal and formal assessment, plus a tracking template for scores.

✏️ Supplemental Materials: Includes answer keys for the worksheets and tests, a suggested book list, and extra pages with Canadian-specific content and spelling.

Note:

  • US Buyers: Aligned with US Common Core standards, focusing on second-grade skills.
  • Canadian Buyers: Aligns with B.C. and Ontario curriculum standards, with additional pages for Canadian content. A separate PDF is provided.

⭐️Math Common Core Standards covered in this unit:

  • CCSS.2.NBT.B.7
  • CCSS.2.NBT.B.8
  • CCSS.2.NBT.B.9
  • CCSS.MP1
  • CCSS.MP2
  • CCSS.MP3
  • CCSS.MP4
  • CCSS.MP5
  • CCSS.MP6
  • CCSS.MP7
  • CCSS.MP8


TEACHERS LIKE YOU SAID...

⭐️⭐️⭐️⭐️⭐️ Abbey C. says, "I absolutely love how planned out the Mindful Math lessons are! My students really grasp the materials since there are so many different ways to teach and assess! This is my go to when teaching skills that are difficult to master!"


⭐️⭐️⭐️⭐️⭐️ Julia H. says, "Finally found a unit that teaches 3-digit addition thoroughly and in a progression that makes sense to my students. They learned all the strategies before the traditional algorithm, so by the time we got to that, they understood WHY they were doing what they were doing. Loved this!"

⭐️⭐️⭐️⭐️⭐️ Mary P. says, "I am so excited that I found this amazing resource. It made planning a breeze! Thank you for sharing your work with others."

⭐️ Want the best value? Save 60% with the 2nd Grade Mindful Math Curriculum Bundle! Get 10 units, 75 lessons, and a full year of math instruction while saving compared to purchasing units separately. Check out the bundle listing to see everything included. ⭐️

You might also be interested in!

Check out other second grade Mindful Math units.

Stay connected with Proud to be Primary

♥Never miss a sale or new release! Click the star to follow my store!

Join our email list and get exclusive content and FREE resources.

♥Visit our website at Proud to be Primary for engaging ideas!

Have a question or need help with a file?

Visit the FAQs section, submit a help ticket, or ask a question on the Q& A tab before leaving feedback. Please ask all questions before purchasing.

Terms of Use: This product is licensed for single classroom use ONLY unless multiple licenses are purchased. Your purchase grants you a license to use in a secure, password-protected online platform (such as Google Classroom) with your students only. You may not transfer or share with another teacher or use it for commercial purposes (Outschool, etc.).

Copyright ©2013 to Present - Proud to be Primary - Elyse Rycroft

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 4.81 out of 5, based on 36 reviews
36
ratings
5
29
4
7
3
0
2
0
1
0
Mostly used with 2nd and 3rd grades
Reviews
2
17
13
1st
2nd
3rd
All verified TPT purchases
Helpful resource
Rated 5 out of 5
May 15, 2026
Met expectations
Great value
Standards-aligned
I love using this every year my students like the activities
Selina M.
36 reviews • Outside the United States
Grades taught: 3rd
I Wish I'd Bought this Sooner!
Rated 5 out of 5
March 16, 2026
Met expectations
Great value
Standards-aligned
Fantastic product! I wish I had purchased this sooner! So helpful.
Bec G.
309 reviews • Outside the United States
Grades taught: 2nd
Great for supplementation
Rated 5 out of 5
October 16, 2025
Met expectations
Great value
Standards-aligned
This resource was exactly what I needed for my 2nd graders! It’s well-organized, easy to prep, and thoughtfully designed to support student engagement and learning. The visuals are bright but clean, and the directions are clear for both teachers and students.
Lindsay R.
14 reviews • New York
Grades taught: 1st, 2nd
Rated 4 out of 5
July 14, 2025
Great practice for my tutoring kdido this summer! Has really been helping!
DINO-Mite Learners
(TPT Seller)
3,137 reviews
Grades taught: 2nd, 3rd
Student populations: Autism, Learning difficulties, Mild to severe disabilities
Rated 5 out of 5
May 4, 2025
Used this during the pandemic. Perfect for distance learning!
Elizabeth Hudgins
(TPT Seller)
599 reviews
Grades taught: 2nd
Rated 5 out of 5
October 17, 2024
I LOVE all the Mindful Math, this is more of the same great stuff!
365 reviews
Grades taught: 2nd
Rated 5 out of 5
October 4, 2024
My students have really enjoyed this resource! I love that it comes with hands-on activities!
Katherine Geric
(TPT Seller)
151 reviews
Grades taught: 2nd, 3rd
Student populations: Autism, Learning difficulties, Mild to severe disabilities
Rated 5 out of 5
September 8, 2024
I love how easy it was to use this resource in my classroom. The materials were well-designed, and my students responded really well to them
Angelica A.
398 reviews
Grades taught: 3rd

Questions & Answers

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Standards

to see state-specific standards (only available in the US).
Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.
Mentally add 10 or 100 to a given number 100–900, and mentally subtract 10 or 100 from a given number 100–900.
Explain why addition and subtraction strategies work, using place value and the properties of operations.
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