This pack contains a variety of activities that can be used to review three digit addition and subtraction, with and without regrouping. The activities offer a more interesting alternative to a skill and drill worksheet and serve as a supplement to your regular math curriculum.
The activities contained within are intended for use in reinforcing the standard algorithm, once the concepts of multiple digit addition and subtraction are firmly in place.
However, as with any teaching resource, this pack can be used at the teacher's discretion. You can use the unit to provide engaging practice with the standard algorithm (relate the strategy to a written method) or as you introduce the concept of regrouping (composing and decomposing tens and hundreds) using models. I usually have my students use a set of models and a place value mat next to their assignment. They use the models to complete each step of the problem and transfer that information to their worksheet.
Feel free to modify the activities to meet the needs of your students.
The following is included in this pack:
-Suggestions for Use/Description of Activities
-Roll a Number Sentence-Addition (students roll a die to build two numbers, then add them together)
-Roll a Number Sentence-Subtraction (students roll a die to build two numbers, then subtract them)
-Spin a Number Sentence-Addition (students use a paperclip spinner to obtain two numbers; they add those numbers together)
-Spin a Number Sentence-Subtraction (students use a paperclip spinner to obtain two numbers; they subtract those numbers)
-Pick a Card- (students pick 2 cards and add them together; partners compare sums)
-Five in a Row- (students roll 2 number cubes, subtract those numbers, cover the answer on the game board; first to get 5 in a row, wins!)
-Sort it Out- (students solve a variety of three digit addition and subtraction problems, then sort them into the categories regrouping or no regrouping)
-Match Up- (students match up beach themed number sentence cards with the correct answer card; a student recording sheet and answer key are included)
This pack is aligned with the following Common Core standard (with an emphasis placed on relating "the strategy to a written method"):
2.NBT.7 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.
I agree with Kathyjn about the vocabulary but other than that I thought it was a great resource. I used this pack as one resource during my unit.
April 19, 2013
I was a little disappointed when I found math problems in this pack that resembled the old way of doing stuff. For example: it uses the vocabulary regrouping and no regrouping instead of compose and decompose. Numbers are stacked and the format doesn't provide a space for students to calculate the answer with models, etc. I do want to say that it has good ideas, I just have to modify some of the sheets to make them common core ready.
You bet! I am thrilled to hear that it has been a useful resource for you! I am truly appreciative of your feedback!
March 17, 2013
Great resource for small group activities, review and centers. Thanks for all of your hard work. I do agree with Agela Bohr on different problem solving strategies . It confused some of lower learners.
Thank you for your feedback! Im glad you found it useful! You're right in that below average learners may struggle with this concept. I have used this pack in two ways: to review the algorithm once it is taught and understood, and to introduce the concept of regrouping with the use of models. I recently used a few of these activities with some below average students and they used place value mats and base 10 blocks to model each problem to find the answer. These students needed more exposure to the conceptual side of regrouping. These activities can definitely be used at the teacher's discretion so that students' needs are always being met. Thanks again for your feedback!
I love this and so do my students. The only thing is that although it is aligned with the common core, I have my students solve the problems using different addition and subtraction strategies that are taught with the common core such as place value and using the number line. Other than that this packet provides fun activites for the students to enjoy as we explore this standard.
That's great, Angela! I do the same thing with my own students. Prior to using the standard algorithm, I have the students use place value mats and base 10 blocks to model each problem as they solve it. This definitely helps them grasp the concept of regrouping. Later on, once they are able to solve these problems without the use of models, I have them review the algorithm using the activities we haven't used yet. Thank you for pointing out another way of using this item! I appreciate your feedback!
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QUESTIONS AND ANSWERS:
Thanks for updating the game : )
This week I am being observed and I needed an introduction/review adding lesson. I teach third grade and gave a pre-assessment that illustrated how diverse my students adding abilities are. I am going to use the "Roll a Number Sentence" activity. I think the kids will love it! I wanted to scaffold the activity by forming three leveled groups. Could you possibly make a two digit and four digit activity sheet? I would be willing to pay you. I think it would end up being a great differentiated lesson!
That sounds like a great idea! I would certainly be willing to create a Roll a Number Sentence mini pack fir varying levels of abilities as I would find the materials useful myself. Could you email me at firstname.lastname@example.org to discuss further? Looking forward to hearing from you!
October 16, 2012
Hi. These activities look great. On the directions for "Roll a Number Sentence" you used a comma before write it down and then in number three you used a semicolon. I was wondering if the semicolon should used be in both sentences?