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Monday, November 24, 2014

Regrouping with Subtraction

My group of 2nd graders are working on this skill now.  Regrouping is always so difficult isn't it?
I remember last year my son having a hard time with it ( I showed him old school way and it helped), but all the new methods were confusing him.  Then, we had all those snow days last year and it was hit and miss with him remembering it.  I made him a pack of goodies to help us practice.
Winter Regrouping-First Grade and Fabulous
You can click the image to see it on TpT.
Little did I know at the time I would be needing this same pack for my upcoming students.
I didn't know that I was going to apply for this job I have--
but I'm glad that I have some of the resources I have because they sure come in handy! :)

My students needed something more concrete as we tackle this skill.
So here's what we did.

First, do you remember the magnetic tens and ones?
I posted about them a while back--you can see that HERE

These little magnetic tens and ones help me greatly!

My classroom is a bit smaller---okay, great deal smaller than my previous one.
I don't have a SmartBoard and only a few I-Pads, so I need to find ways to make things "stick"

We used these tens and ones---with a cookie sheet.
 My students took turn building the number with tens and ones to create the minuend. 
They checked their partner's work to make sure the correct number was being represented.

 Then the partner looked at the subtrahend and took that amount away to show the difference.

 Some of our math problems had to be regrouped.  
This was a GREAT visual for my students.
When they were ready to subtract, they could quickly tell they didn't have enough.
We traded in a ten, for ten ones.
We showed this on our worksheet also as we were working through these math problems.
 It helped them realize that a group of tens becomes one less when you regroup, and you're breaking down a ten.  Our activity only used a one digit number as the subtrahend.  
When we come back from break, we will be reviewing this skill.

If you'd like the worksheet that we were doing during this activity, please click the image below.
Thanksgiving Regrouping Page-First Grade and Fabulous

Do you have any other great tips for regrouping? 
Be sure to tell me about them! :)

Also, don't forget about the GREAT giveaway going on---
be sure to enter for your chance of a Reading A-Z subscription!

I apologize for Rafflecopter...I have messaged them to see if we can get it to load quicker.
We will see what happens!


  1. Last year my son's teacher taught them a poem-- not sure who to give credit to, but it said: If there's more on the top, no need to stop. If there's more on the floor, go next door. It helped my son.

  2. Great activities! I always use play money to teach regrouping and borrowing.

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