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Addition and Subraction within 20 1st Grade Math Unit - Word Problems Lessons
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What others say

"This was well-organized and thought out. I greatly appreciated having the ability to follow the plans and having all of the resources right there in the packet. My students enjoyed the lessons and activities as well. "
star
Kassie N.
"I have been using this in my kinder classroom with my students that are a little more advanced. They love the challenge and the fun activities built in"
star
Ceara B.

Description

Are you looking for a first grade beginning of the year math unit? In this unit students will become fluent with adding and subtracting within 20 using a variety of strategies. This unit includes, lesson plans, partner games, fluency practice & more!

This unit provides four weeks of detailed math instruction.

First Grade Math Unit 2 Concepts:

  • Add and subtract- using strategies
  • Use addition and subtraction within word problems
  • Apply properties of operations as strategies to add and subtract
  • Understand subtraction as an unknown-addend problem

First Grade Math Unit 2 Components:

  • Fluency practice
  • New concept lessons
  • Whole group exploration time
  • Student application
  • Regroup/share time prompts
  • Unit assessment and answer key

Click here to view: First Grade Math COMPLETE MONEY SAVING BUNDLE

The individual First Grade Math units can be viewed by clicking on the link to each unit below.

First Grade Math Unit 1

First Grade Math Unit 2

First Grade Math Unit 3

First Grade Math Unit 4

First Grade Math Unit 5

First Grade Math Unit 6

First Grade Math Unit 7

First Grade Math Unit 8

First Grade Math Unit 9

First Grade Math Unit 10

Note: These first grade math units aren't merely a pack of worksheets, they are actual research-based hands-on lessons and activities. They provide teachers with DETAILED lesson plans and two follow-up activities for the students to practice what was taught.

Deanna Jump and Deedee Wills

Photo Credit CLASSROOM CLICKS

SKU: 1332306

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 and Subraction within 20 1st Grade Math Unit - Word Problems Lessons

Deanna Jump
113.9k Followers
$12.00

Highlights

Digital downloads
Standards icon
Standards
Pages
250

What others say

"This was well-organized and thought out. I greatly appreciated having the ability to follow the plans and having all of the resources right there in the packet. My students enjoyed the lessons and activities as well. "
star
Kassie N.
"I have been using this in my kinder classroom with my students that are a little more advanced. They love the challenge and the fun activities built in"
star
Ceara B.

Save even more with bundles

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Are you looking for a 1st Grade Math complete curriculum? Check out this bundle special that includes our best-selling First Grade Math Units and Printables! These First Grade Math Lessons are research-based and designed specifically for first grade teachers and students. This is all you need to te
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Description

Are you looking for a first grade beginning of the year math unit? In this unit students will become fluent with adding and subtracting within 20 using a variety of strategies. This unit includes, lesson plans, partner games, fluency practice & more!

This unit provides four weeks of detailed math instruction.

First Grade Math Unit 2 Concepts:

  • Add and subtract- using strategies
  • Use addition and subtraction within word problems
  • Apply properties of operations as strategies to add and subtract
  • Understand subtraction as an unknown-addend problem

First Grade Math Unit 2 Components:

  • Fluency practice
  • New concept lessons
  • Whole group exploration time
  • Student application
  • Regroup/share time prompts
  • Unit assessment and answer key

Click here to view: First Grade Math COMPLETE MONEY SAVING BUNDLE

The individual First Grade Math units can be viewed by clicking on the link to each unit below.

First Grade Math Unit 1

First Grade Math Unit 2

First Grade Math Unit 3

First Grade Math Unit 4

First Grade Math Unit 5

First Grade Math Unit 6

First Grade Math Unit 7

First Grade Math Unit 8

First Grade Math Unit 9

First Grade Math Unit 10

Note: These first grade math units aren't merely a pack of worksheets, they are actual research-based hands-on lessons and activities. They provide teachers with DETAILED lesson plans and two follow-up activities for the students to practice what was taught.

Deanna Jump and Deedee Wills

Photo Credit CLASSROOM CLICKS

SKU: 1332306

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

4.9
Rated 4.94 out of 5, based on 528 reviews
528
ratings
5
521
4
7
3
0
2
0
1
0
Mostly used with 1st grade
Reviews
1
1
4
22
4
1
1
Early Childhood
PreK
K
1st
2nd
3rd
4th
All verified TPT purchases
Well-crafted resource
Rated 5 out of 5
April 20, 2026
Met expectations
Great value
Standards-aligned
This was well-organized and thought out. I greatly appreciated having the ability to follow the plans and having all of the resources right there in the packet. My students enjoyed the lessons and activities as well.
Kassie N.
229 reviews • Mississippi
Grades taught: 1st, 2nd
Student populations: Learning difficulties
Great resource
Rated 5 out of 5
February 4, 2026
I have been using this in my kinder classroom with my students that are a little more advanced. They love the challenge and the fun activities built in
Ceara B.
218 reviews
Grades taught: K
very well made resource
Rated 5 out of 5
August 13, 2025
love this, super easy to get it organized and my kids love it
Kadence B.
56 reviews
Grades taught: PreK, K, 1st, 2nd
Rated 5 out of 5
June 16, 2025
I used this to challenge my students that were ready for the next step.
Genevieve F.
248 reviews
Grades taught: K
Rated 5 out of 5
July 17, 2023
Used this during our math time with students for additional practice
Mia P.
214 reviews
Grades taught: K, 1st
Rated 5 out of 5
April 17, 2023
This curriculum made all the difference to my student's learning! It was simple to organize and present and made learning easy!
Cecilia S.
21 reviews
Grades taught: 1st
Student populations: Autism
Rated 5 out of 5
August 3, 2022
My class loved this resource!
Antoinette C.
785 reviews
Grades taught: 1st
Rated 5 out of 5
July 20, 2022
This unit was excellent and very detailed!
Kelly Pate
(TPT Seller)
674 reviews
Grades taught: 1st

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.
Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).
Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).
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