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Mental Math Strategies for Addition and Subtraction Fluency - Flexible Thinking

Rated 4.84 out of 5, based on 862 reviews
4.8 (862 ratings)
;
Shelley Gray
25.3k Followers
Grade Levels
1st - 4th, Homeschool
Standards
Formats Included
  • Zip
Pages
900+
$46.75
List Price:
$85.98
You Save:
$39.23
Bundle
$46.75
List Price:
$85.98
You Save:
$39.23
Bundle
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Shelley Gray
25.3k Followers

What educators are saying

My students on the spectrum need to make the leap from concrete objects to mental math strategies. This was a great find!
I love the thought and effort that has been put into this bundle. I love that the strategies are well explained, contain a reference poster and supporting activities.

Products in this Bundle (20)

    showing 1-5 of 20 products

    Description

    So you're ready to implement mental math addition and subtraction strategies this year, but aren't sure where to start! It can be overwhelming - counting on, doubles, left-to-right addition, compensation, breaking apart numbers, and so much more - how can you teach these mental math concepts strategically so that more of your students can develop addition and subtraction fact fluency?

    These extensive units for Mental Math Strategies dive into all the major addition and subtraction strategies for true fact fluency. The goal is not to memorize the facts but to develop the flexibility that will allow students to solve problems effectively and efficiently while developing fact fluency.

    Your students work toward flexible thinking and fact fluency while learning the following addition strategies:

    and the following subtraction strategies:

    Each unit contains a wealth of material to teach the specific mental math strategy so your students can build their understanding in many different ways. This includes:

    • strategy reference poster
    • math talks
    • activity sheets
    • workstation activities

    BONUS!!

    I'm also including 7 sets of Math Mats as a bonus to this bundle! These addition and subtraction math mats will help students SEE the strategies as they work with them. If you love using the CRA Model to teach math in your classroom, you'll love these math strategy mats.

    What are other teachers saying?

    ⭐️⭐️⭐️⭐️⭐️"This is all I've ever wanted for mental math. It's got virtually every strategy from basic to more tricky and well thought out lessons, activities and centres. This is by far the best product I've found in 15 years of teaching for teaching students mental math. All in one place, it's everything you need!"

    ⭐️⭐️⭐️⭐️⭐️"This is a gem. Previous feedback is accurate. Extremely teachable resource; well thought out and sequenced, provides multiple ways to learn the concept. This is everything you will need to teach addition and subtraction strategies. I like the files that have differentiated worksheets. I will definitely be using them; as some students in my Gr. 2 room are ready to work on number concepts to 100, while others are struggling with 1-10. Take those "Math Strategies Posters" out of your shopping cart and check out with this, and only this, instead. It's perfect. Stream-lined. accurate."

    ⭐️⭐️⭐️⭐️⭐️ "I always get nervous when I spend a lot of money on TpT for something...man, this was TOTALLY worth it. My kids this year really KNOW their facts and I feel like I've accomplished basic facts for the first time in my 11 years of teaching. This is an awesome resource!! I am a dedicated follower! :) LOVE your stuff!"

    ⭐️⭐️⭐️⭐️⭐️ "As usual, another excellent resource! The number talks were very engaging for my students. I also broke these down into mini unit workbooks for students to practice their mental math skills. They still refer to them now! (And I taught this months ago!)"

    ⭐️⭐️⭐️⭐️⭐️ "Incredible resource!! I was a bit weary of the price, but it truly is worth every penny. This has helped to increase my students' facts more than ever. With a big variety of both regrouping and non-regrouping practice sheets, it made it very easy to scaffold my teaching and lessons to work through these strategies. I liked the variety of worksheets as well. Instead of just simply having them answer questions you have broken these skills down into fun, engaging, and helpful practice. I can't recommend this product enough!"

    ⭐️⭐️⭐️⭐️⭐️ "Students enjoyed the variety of creative activities and all benefited from the review of mental math strategies. I've looked for something like this for a long time! This resource made addition/subtraction strategies easy to teach. Well worth it."


    For full details, please see the free preview.

    Total Pages
    900+
    Answer Key
    Included
    Teaching Duration
    N/A
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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.
    Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
    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.
    Explain why addition and subtraction strategies work, using place value and the properties of operations.
    Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.

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