Addition & Subtraction Enrichment | Third Grade Math Workshop Unit Bundle

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  1. Games, problem solving tasks, projects, and number of the day binder pages to enrich your entire year of math instruction. These 3rd grade math enrichment activities aren’t busy work. They help your students develop a deeper understanding of third grade math concepts through:★ Hands-on games that fo
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These 3rd grade addition and subtraction extension and enrichment activities aren’t busy work. They help your students develop a deeper understanding of addition and subtraction concepts through:

★ Hands-on games that foster conversations about math. 

★ Carefully crafted word problems that require modeling and explaining math reasoning.

★ Engaging projects that help students apply the concepts they’ve learned. 

Get ready for a math year filled with motivated learners, contagious engagement, and deeper understanding. Math will never be the same. 



Place Value & Rounding

Addition & Subtraction





Telling Time



This bundle of math resources makes it easy for you to supplement & enrich your third grade addition and subtraction math unit with engaging activities that will challenge the unique learners in your classroom.

Providing opportunities to extend learning is an essential component for helping your students truly master the math concepts introduced in third grade. 

Each resource is research-based, student-centered, aligned to third grade math standards, tested in my third grade classroom, and then revised as needed to create a final product that gives your students a variety of opportunities to access engaging and challenging learning experiences. 

These enrichment resources are designed to supplement your district-adopted curriculum. Your students can dig deeper into the concepts they have learned during the lessons and practice exercises provided by your curriculum through the games, problem solving tasks, and projects included in this bundle. 



Enrichment and rigor were top priority when these resources were created. During the first years of my teaching career, I always felt frustrated by the lack of resources for my advanced learners. They were able to quickly and accurately solve the problems provided by our district-adopted curriculum, and any “enrichment” resources I had on hand were simply extra sets of problems or busy work. My learners deserved more, and were certainly capable of more. Sound like some of your students? 

This inspired me to begin designing resources that would meaningfully allow these advanced learners to deepen their understanding through highly-engaging learning opportunities. Here’s how rigor is woven into each resource included in this bundle:

Hands on Math Games: Suggestions for a challenge version of each game are included on each game card. 

Problem Solving Tasks: Three increasingly challenging levels of task cards are included: making meaning, challenge, and transfer tasks. 

Project Based Learning (PBL) Guide: This guide is specifically written to meet the needs of students who have demonstrated mastery of place value,addition, and subtraction concepts and are ready to apply them to a real-world project. 



These materials are designed to promote student independence and self-directed learning. A consistent format is used for each math game card, each problem solving task and recording sheet, and each page of the project based learning guide. Once students understand the familiar and consistent layout used for each of these resources, they will be empowered to navigate each learning challenge with maximum independence.



Gone are the days of flipping through your math resource books and files in search of enrichment activities that meet the unique needs of your learners. Instead, you can rely on Core Inspiration’s Math Enrichment Unit Bundles to provide your students with a variety of learning activities that will challenge and engage them like never before. Simply download, print, and add them to your game center, problem solving board, or math workshop corner.



Addition & Subtraction Problem Solving Task Cards:

The 40 task cards included in this bundle are designed to measure your students’ ability to apply multi-digit addition and subtraction skills. Each of these word problems requires students to utilize problem solving, reasoning, critical thinking, and precise modeling skills. Three increasingly-challenging levels of task cards are included in a printable format and a digital Goggle Classroom-ready format.

Teacher’s Guide: This detailed 14-page guide includes ideas for organizing your task cards, organizing response sheets, scoring completed tasks, and answers FAQs.

24 Making Meaning Task Cards: These tasks require students to apply 3rd grade addition and subtraction math skills to solve complex word problems using precise math models.

8 Challenge Task Cards: These tasks are designed to provide enrichment opportunities to students who have mastered the math concepts you’ve introduced during your addition and subtraction unit. Each task requires critical thinking and the ability to apply 3rd grade math skills to solve more advanced and complex problems.

8 Transfer Task Cards: These tasks are designed for students who are ready to demonstrate their mastery of 3rd grade math content through carefully-crafted summative assessment problems.  Each of these higher-order tasks requires students to evaluate, design, analyze, make connections, or find patterns while problem solving.

Digital Recording Sheets: The two digital recording sheet formats included help you scaffold and differentiate the problem solving process for the learners in your classroom. Each recording sheet format includes space for students to:

  • Record and analyze the math word problem.
  • Create labeled math models showing how to solve the problem.
  • Record their solution in a complete sentence.

Printable Recording Sheets: The three printable recording sheet formats included help you scaffold and differentiate the problem solving process for the learners in your classroom. Each recording sheet format includes space for students to:

  • Record and analyze the math word problem.
  • Create labeled math models showing how to solve the problem.
  • Record their solution in a complete sentence.

2 Completed Task Card Samples: These completed samples feature Task 1 from the Third Grade Area and Perimeter Word Problem Solving Task Card Collection and can be used to set work quality expectations for your students as they familiarize themselves with these digital task cards. Sample 1 models how to use the “Simple Solution” recording sheet format, and Sample 2 models how to use the “Solution with Explanation” recording sheet format.

Answer Keys: Scoring these complex word problems is easier than ever with a quick-reference answer key for every task.

Editable Rubric: Providing meaningful feedback to students has never been easier with this word problem solving task card rubric. The rubric is included as a digital slide, and a PDF so you can select the format that meets the needs of your classroom. The format of this rubric also makes it an ideal tool for routine student self-reflection. Use the rubric as-is, or tweak the editable version to meet the unique needs of your classroom.

Weekly Task Card Tracker Template: Plug your student names into this editable document, print it, laminate it, and hang it near your task card station so you and your students can easily track their progress toward their weekly task card goal. 

Task Card Board/Station Signs: ready-to-print signs that make organizing your task card station a breeze.


Differentiated Problem Solving Recording Sheets:

These recording sheets are designed to be used with any word problem. All three formats foster detailed math modeling and articulation of solutions in a complete sentence.

Each recording sheet includes space to record the question, create a model, and record the solution. The following steps are included to support your students as they develop problem solving skills. 

Three steps for recording the question:

★ Copy the problem carefully. 

★ Write a number next to each part of the problem. 

★ Circle the keywords.

Three steps for creating a model: 

★ Solve each part of the problem using a model. 

★ Label your model with math vocabulary. 

★ Create another model showing the same solution in a different way. 

Four steps for recording the solution:

★ Answer each part of the problem accurately using complete sentences. 

★ Double check that each part of the problem is answered. 

★ Double check for capital letters and punctuation. 

★ Whisper read your entire answer out loud to check that it makes sense. 

Each differentiated option is offered in the following formats:

★ A ready-to-print PDF

★ An editable PowerPoint document

★ An uneditable Google slide for recording responses digitally 


Place Value in the Wild Project Based Learning:

During this project based learning (PBL) unit, your third grade students will work toward becoming an expedition scout for Wildlife Explorers International. As part of their job application process, they must create a field guide filled with information about animals from the habitat of their choice. Here are the steps your students will take as they work towards being hired as an expedition scout:

★ Select one natural habitat from around the world. 

★ Research eight animals from the habitat of their choice. 

★ Compare and order the size/weight of each animal researched. 

★ Show the weight, height, and lifespan of each animal in word form, expanded form, standard form, rounded form, and as a place value model. 

★ Write an expository outline filled with other amazing information about each animal. 

★ Create a video clip in which they reflect on the learning and growth they made throughout the project. If digital equipment is unavailable, a live presentation can also be done. 

★ Complete a self-assessment of their project using a three-part rubric.

★ Assemble their application according to very specific visual instructions.


Addition & Subtraction Hands-On Math Games:

Math In Motion Games are designed to boost engagement, and make math fun through friendly competition. Each game uses simple manipulatives including playing cards, counters, dominoes, dice, and timers. A few games have quick print-and-laminate game pieces that can be reused year after year. Many games include movement, and are perfect for your active learners. Both full-color and black-line masters are provided for your printing preferences. Bright, easy-to-read game cards boost engagement, and make introducing new games exciting for your students. The games included in this unit bundle are:

★ To Regroup or Not To Regroup (recognize when regrouping is needed)

★ Add N' Roll (add multi digit numbers with regrouping)

★ Pushing 1,000 (create an addition problem with a sum closest to 1,000)

★ Addition War (create an addition problem with the greatest possible sum)

★ Subtraction War (create a subtraction problem with the lowest possible difference)

★ Race To Zero (master subtraction with regrouping)



Labels to help you organize all the materials you receive in this unit bundle. A unit bin label and task card box label are provided in four different styles to meet your unique needs. Each label has an icon to represent addition and subtraction, making it easier than ever to find the resources you need in your closet or cabinet. Color and black line versions of each label are provided.


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Total Pages
162 pages
Answer Key
Teaching Duration
1 month
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to see state-specific standards (only available in the US).
Solve two-step word problems using the four operations. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.
Make sense of problems and persevere in solving them. Mathematically proficient students start by explaining to themselves the meaning of a problem and looking for entry points to its solution. They analyze givens, constraints, relationships, and goals. They make conjectures about the form and meaning of the solution and plan a solution pathway rather than simply jumping into a solution attempt. They consider analogous problems, and try special cases and simpler forms of the original problem in order to gain insight into its solution. They monitor and evaluate their progress and change course if necessary. Older students might, depending on the context of the problem, transform algebraic expressions or change the viewing window on their graphing calculator to get the information they need. Mathematically proficient students can explain correspondences between equations, verbal descriptions, tables, and graphs or draw diagrams of important features and relationships, graph data, and search for regularity or trends. Younger students might rely on using concrete objects or pictures to help conceptualize and solve a problem. Mathematically proficient students check their answers to problems using a different method, and they continually ask themselves, "Does this make sense?" They can understand the approaches of others to solving complex problems and identify correspondences between different approaches.
Construct viable arguments and critique the reasoning of others. Mathematically proficient students understand and use stated assumptions, definitions, and previously established results in constructing arguments. They make conjectures and build a logical progression of statements to explore the truth of their conjectures. They are able to analyze situations by breaking them into cases, and can recognize and use counterexamples. They justify their conclusions, communicate them to others, and respond to the arguments of others. They reason inductively about data, making plausible arguments that take into account the context from which the data arose. Mathematically proficient students are also able to compare the effectiveness of two plausible arguments, distinguish correct logic or reasoning from that which is flawed, and-if there is a flaw in an argument-explain what it is. Elementary students can construct arguments using concrete referents such as objects, drawings, diagrams, and actions. Such arguments can make sense and be correct, even though they are not generalized or made formal until later grades. Later, students learn to determine domains to which an argument applies. Students at all grades can listen or read the arguments of others, decide whether they make sense, and ask useful questions to clarify or improve the arguments.
Model with mathematics. Mathematically proficient students can apply the mathematics they know to solve problems arising in everyday life, society, and the workplace. In early grades, this might be as simple as writing an addition equation to describe a situation. In middle grades, a student might apply proportional reasoning to plan a school event or analyze a problem in the community. By high school, a student might use geometry to solve a design problem or use a function to describe how one quantity of interest depends on another. Mathematically proficient students who can apply what they know are comfortable making assumptions and approximations to simplify a complicated situation, realizing that these may need revision later. They are able to identify important quantities in a practical situation and map their relationships using such tools as diagrams, two-way tables, graphs, flowcharts and formulas. They can analyze those relationships mathematically to draw conclusions. They routinely interpret their mathematical results in the context of the situation and reflect on whether the results make sense, possibly improving the model if it has not served its purpose.
Use appropriate tools strategically. Mathematically proficient students consider the available tools when solving a mathematical problem. These tools might include pencil and paper, concrete models, a ruler, a protractor, a calculator, a spreadsheet, a computer algebra system, a statistical package, or dynamic geometry software. Proficient students are sufficiently familiar with tools appropriate for their grade or course to make sound decisions about when each of these tools might be helpful, recognizing both the insight to be gained and their limitations. For example, mathematically proficient high school students analyze graphs of functions and solutions generated using a graphing calculator. They detect possible errors by strategically using estimation and other mathematical knowledge. When making mathematical models, they know that technology can enable them to visualize the results of varying assumptions, explore consequences, and compare predictions with data. Mathematically proficient students at various grade levels are able to identify relevant external mathematical resources, such as digital content located on a website, and use them to pose or solve problems. They are able to use technological tools to explore and deepen their understanding of concepts.


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