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2-Digit Subtraction with Regrouping-Mini-Lessons & Workstation

Grade Levels
1st, 2nd, 3rd
Resource Types
Product Rating
Teachers Pay Teachers
PDF (Acrobat) Document File
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2.34 MB   |   11 pages

PRODUCT DESCRIPTION

Description
My 2nd grade teachers swear by this unit!!

If you are apprehensive about teaching subtraction with regrouping, this is the product for you!! Complete unit for introducing subtraction of two-digit numbers with regrouping.

Includes:

Two scripted mini-lessons utilizing place value mats to lead students through the concrete (manipulatives), representational (model), and abstract (algorithm) stages for subtraction with regrouping. Includes instruction on problem solving and recognizing the different types of subtraction (take-away, missing part, comparison).

A reproducible flowchart chart to give students as a reminder of when and how to regrouup.

A workstation for students to practice new skills independently. Includes student instructions and recording sheet.

Common Core Alignment
2.NBT.1--Understand that the three digits of a three-digit number represent amounts of hundred, tens, and ones
2.NBT.5--Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction
2.NBT-9--Explain why addition and subtraction strategies work, using place value and the properties of operations

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Terms of Use
Copyright © Donna Boucher. All rights reserved by author. This product is to be used by the original downloader only. Copying for more than one teacher, classroom, department, school, or school system is prohibited. This product may not be distributed or displayed digitally for public view. Failure to comply is a copyright infringement and a violation of the Digital Millennium Copyright Act (DMCA). Clipart and elements found in this PDF are copyrighted and cannot be extracted and used outside of this file without permission or license. Intended for classroom and personal use ONLY.
Total Pages
11
Answer Key
N/A
Teaching Duration
N/A

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On  September 21, 2013Carol Cram (TpT Seller) said:
Awesome resource! Thank you.
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On  September 16, 2013,  Sherrie R. said:
Using this with one of my fifth graders to help build a foundation and understanding. Thanks so much.
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Can't wait to use this in my class!
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On  September 11, 2013,  Samantha G. said:
Can't wait to use this with my small group :)
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On  September 9, 2013,  Buyer said:
This lesson is very well put together and I love the center/station that comes with it.
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On  August 19, 2013,  Buyer said:
Would love this type of resource for all the major math concepts for second grade. Keep them coming. Have you ever considered making available a complete set of mini lessons for second grade math concepts? I would buy every one of them.
Thank you so much,
Jan
Thanks,
Jan
On  August 20, 2013Math Coach's Corner answered:
Thanks, Jan! I'm always looking for ideas, and that's a great one. I hope to get to work on some new stuff soon.
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very useful product
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Thank you for sharing!
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So helpful - thank you!
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On  April 11, 2014,  Buyer said:
This is a great resource. I'm teaching regrouping to a group of students who are still in the concrete stage and this is a great hands on resource. I like the mats, they are helpful. Thank you so much!
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On  April 11, 2014,  Buyer said:
I think using the workmat that you have designed will really help some of my 2nd graders really solidify the idea of regrouping for subtraction. I'm looking forward to presenting this 'method' tomorrow. Thank you for using the 10 frame model since that is where the Common Core is taking us. Nice product.
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Terrific!!!
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On  March 29, 2014,  Buyer said:
I plan on using this for re-teaching in my classroom. It will be perfect to reinforce the skills of the students that got it. It will be another helpful tool for my students who could use another go round with the concept. Thanks.
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good resource for a difficult concept
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On  March 21, 2014,  Buyer said:
I have done the concrete & visual models for years, but the set up of the page with building the whole & then just writing the part underneath really helped them understand the whole-part concept.
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On  March 7, 2014,  Melissa H. said:
I LOVE the subtraction flow chart!
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:)
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Another wonderful product! You are amazing. Thanks for all your hard work!
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On  February 28, 2014,  NoraLee S. said:
Great resource for my struggling second graders.
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On  February 27, 2014,  Jamie D. said:
Wonderful activity
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On  February 27, 2014,  Buyer said:
My students always need more help with subtraction. Thanks!
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On  February 27, 2014,  Buyer said:
I plan to use t his with my intervention group.
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Product Questions & Answers

n/a
On  February 9, 2013,  Buyer asked:
There are black boxes in a few of the items, where there should be titles?
Teachers Pay Teachers
On  February 9, 2013Math Coach's Corner answered:
Hey Stephanie! Sorry for the problems. Are you maybe using a Mac? This is from the TpT Help section:

The PDF I downloaded is showing black smudges, what do I do?
You just need to update your Adobe Reader:
http://get.adobe.com/reader/otherversions/

If you are on a Mac, do not open with Preview. It will not work. Download the most updated version of Adobe Reader and open the PDF with it (and not Preview). To 'open with' adobe reader on a mac, highlight the product pdf icon with one click, go to 'file' at the top of the screen, choose 'open with' then select 'adobe' and you'll be all set.
On  January 21, 2013Mrs. Shadell (TpT Seller) asked:
Hi, I just purchased the Subtraction with Regrouping packet but the labels in the PV chart (i.e., tens, one, written record) are all blacked out. Can this be fixed?

Thanks!
Sarah
Teachers Pay Teachers
On  January 21, 2013Math Coach's Corner answered:
Hey Sarah! Sorry you're having trouble. Are you by any chance using a Mac? This is from the TpT Help section:

The PDF I downloaded is showing black smudges, what do I do?
You just need to update your Adobe Reader:
http://get.adobe.com/reader/otherversions/

If you are on a Mac, do not open with Preview. It will not work. Download the most updated version of Adobe Reader and open the PDF with it (and not Preview). To 'open with' adobe reader on a mac, highlight the product pdf icon with one click, go to 'file' at the top of the screen, choose 'open with' then select 'adobe' and you'll be all set.
n/a
On  July 4, 2012,  Buyer asked:
Have you done this unit doing it the CORE way without showing the standard way of borrowing? We are not allowed to teach our kids this way anymore. We have to teach it horizontally. Thanks. (The way you talked about in your blog.)
susanlulu@yahoo.com
Teachers Pay Teachers
On  July 4, 2012Math Coach's Corner answered:
No, this unit is strictly to teach regrouping with the standard algorithm with understanding. You're not allowed to teach the standard algorithm? Wow. I would think the emphasis would be on teaching multiple strategies, including the standard algorithm. I think I'd have a hard time estricting what strategies a student can use.
n/a
On  March 1, 2012,  Jessica W. asked:
I can not get this to open on my computer. It says an error has occurred and it can not open. Any hints that could help me get it opened?

Thanks,
Jessica Watkins
Teachers Pay Teachers
On  March 1, 2012Math Coach's Corner answered:
Yikes! It's a PDF file. Have you had problems opening them before? Can you try downloading it again? Maybe there was a problem during the download.
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2-Digit Subtraction with Regrouping-Mini-Lessons & Workstation
2-Digit Subtraction with Regrouping-Mini-Lessons & Workstation
2-Digit Subtraction with Regrouping-Mini-Lessons & Workstation