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Adding 3 Addends | Adding 3 Numbers 1st Grade Math Lesson Slides
Adding 3 Addends | Adding 3 Numbers 1st Grade Math Lesson Slides
Adding 3 Addends | Adding 3 Numbers 1st Grade Math Lesson Slides
Adding 3 Addends | Adding 3 Numbers 1st Grade Math Lesson Slides
Adding 3 Addends | Adding 3 Numbers 1st Grade Math Lesson Slides
Adding 3 Addends | Adding 3 Numbers 1st Grade Math Lesson Slides
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Adding 3 Addends | Adding 3 Numbers 1st Grade Math Lesson Slides
Adding 3 Addends | Adding 3 Numbers 1st Grade Math Lesson Slides
Adding 3 Addends | Adding 3 Numbers 1st Grade Math Lesson Slides
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What others say

"This really helped my students understand how to add three numbers. The slides were very engaging and showed the many strategies in an easy to understand manner. THANK YOU!!"
star
Elaine S.
"I have loved using this resource in my classroom! It has enhanced what my kids are learning. Thank you!"
star
Jessica M.

Description

Your students will love this engaging mini-lesson all about adding 3 addends and you'll love that it's no-prep and ready to teach. Each lesson slide is meant to be projected on your whiteboard to guide short and sweet lessons about essential math concepts. Use these slides as a stand-alone lesson, or as a supplement to your existing math curriculum.

Lesson Formats Included:

⭐ Powerpoint

⭐ Google Slides

Inside this Product is...

41 no-prep slides that include:

  • Lesson Slides
  • Games
  • Guided Practice

Topics Covered in this "Bite":

  • What's an addend?
  • Strategies for Adding 3 numbers:
    • draw a picture
    • make a 10
    • find a double
    • count on
  • Adding 3 addends guided practice

Editable template slides are also included so you can tailor your discussions to fit your students' needs!

Bite-Size Math is also perfect for distance learning or remote learning. A narrated Google Slides version of this file has been included, so even the youngest students can learn independently.

Sometimes, links are moved or removed. If you ever come across a broken link, don't hesitate to reach out to me at abcswithmrsg@gmail.com and I will update it ASAP!

New to Bite-Size Lessons? Check out these freebies!

Bite-Size Character Ed - Growth Mindset

Bite-Size Science - Engineering Process

Bite-Size Phonics - EE

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.

Adding 3 Addends | Adding 3 Numbers 1st Grade Math Lesson Slides

Sarah Gardner
36.1k Followers
$3.00

Highlights

Grades icon
Grades
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Subjects
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Standards
Pages
44

What others say

"This really helped my students understand how to add three numbers. The slides were very engaging and showed the many strategies in an easy to understand manner. THANK YOU!!"
star
Elaine S.
"I have loved using this resource in my classroom! It has enhanced what my kids are learning. Thank you!"
star
Jessica M.

Save even more with bundles

Your students will love these engaging mini-lessons all about 2-digit addition and subtraction and you'll love that they're no-prep and ready to teach. Each lesson slide is meant to be projected on your whiteboard to guide short and sweet lessons about essential math concepts. Use these slides as a
Price $24.00Original Price $27.00Save $3.00
9
Your students will love these engaging digital mini-lessons and you'll love that they are no-prep and ready to teach. Each lesson slide is meant to be projected on your whiteboard to guide short and sweet lessons about essential math concepts. Use these slides as stand-alone lessons, or as a supplem
Price $136.00Original Price $171.00Save $35.00
57

Description

Your students will love this engaging mini-lesson all about adding 3 addends and you'll love that it's no-prep and ready to teach. Each lesson slide is meant to be projected on your whiteboard to guide short and sweet lessons about essential math concepts. Use these slides as a stand-alone lesson, or as a supplement to your existing math curriculum.

Lesson Formats Included:

⭐ Powerpoint

⭐ Google Slides

Inside this Product is...

41 no-prep slides that include:

  • Lesson Slides
  • Games
  • Guided Practice

Topics Covered in this "Bite":

  • What's an addend?
  • Strategies for Adding 3 numbers:
    • draw a picture
    • make a 10
    • find a double
    • count on
  • Adding 3 addends guided practice

Editable template slides are also included so you can tailor your discussions to fit your students' needs!

Bite-Size Math is also perfect for distance learning or remote learning. A narrated Google Slides version of this file has been included, so even the youngest students can learn independently.

Sometimes, links are moved or removed. If you ever come across a broken link, don't hesitate to reach out to me at abcswithmrsg@gmail.com and I will update it ASAP!

New to Bite-Size Lessons? Check out these freebies!

Bite-Size Character Ed - Growth Mindset

Bite-Size Science - Engineering Process

Bite-Size Phonics - EE

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

5.0
Rated 5 out of 5, based on 29 reviews
29
ratings
5
29
4
0
3
0
2
0
1
0
Mostly used with 1st grade
Reviews
1
2
24
4
1
PreK
K
1st
2nd
3rd
All verified TPT purchases
Excellent teaching tool
Rated 5 out of 5
May 8, 2026
Met expectations
Great value
Standards-aligned
What a great resource to teach students to add 3 addends. It is cute and engaging.
laura B.
220 reviews • Florida
Grades taught: 1st
Student populations: Emerging bilinguals, Learning difficulties
Sub resource
Rated 5 out of 5
April 6, 2026
Out math program is complicates so I leave these for the sub.
Glenda Marroquin
(TPT Seller)
187 reviews • California
Grades taught: 1st
Student populations: Emerging bilinguals, Learning difficulties
VERY engaging mini-lesson!
Rated 5 out of 5
February 23, 2026
Met expectations
Great value
Standards-aligned
This really helped my students understand how to add three numbers. The slides were very engaging and showed the many strategies in an easy to understand manner. THANK YOU!!
Elaine Swansey
(TPT Seller)
605 reviews • Michigan
Grades taught: 1st
Math Mini Lesson
Rated 5 out of 5
January 20, 2026
I have loved using this resource in my classroom! It has enhanced what my kids are learning. Thank you!
Tiny Human Dazzle
(TPT Seller)
573 reviews • Tennessee
Grades taught: PreK, K, 1st, 2nd
Well made resource!
Rated 5 out of 5
November 29, 2025
Met expectations
Great value
Standards-aligned
This resource was a great way to not only introduce the concept, but also teach and review it as well.
386 reviews • Florida
Grades taught: 1st
Great slides!
Rated 5 out of 5
November 6, 2025
Met expectations
Great value
Standards-aligned
These are great slides to show for adding 3 digit numbers. Very engaging!
Mandy Gross
(TPT Seller)
270 reviews • Ohio
Grades taught: 1st, 3rd
Love these!
Rated 5 out of 5
October 18, 2025
Met expectations
Great value
Standards-aligned
I will continue to purchase these! I love them and my students love them!
Candace F.
337 reviews • Texas
Grades taught: 1st
Great resource
Rated 5 out of 5
August 22, 2025
This was a perfect mini lesson to teach a tricky topic.
Scarlett A.
161 reviews • Kansas
Grades taught: 2nd

Questions & Answers

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Standards

to see state-specific standards (only available in the US).
Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, 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 and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.
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.
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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