2nd Grade Mental Math Centers

Welcome to the math unit that will sharpen your students' skills in both rounding and 3 digit addition and subtraction. It's everything you need to teach 3rd grade Number and Operations in Base Ten or NBT. Over 35 pages of practice to help you plan and practice all your rounding and triple digit addition/subtraction needs. Students will practice rounding numbers to the nearest hundreds and tens. Students will also use rounding to estimate the sum or difference of numbers. Along with rounding, students will practice adding and subtracting 3 digit numbers. This unit practices addition and subtraction within 1000. It also has a variety of questions that practice addition and subtraction with and without regrouping. This engaging and thoughtfully crafted unit includes a variety of activities, quizzes, and an assessment to ensure a well-rounded understanding of these fundamental mathematical concepts.

Unit Highlights:

1. Rounding Mastery:

• • Step-by-step lessons on rounding to the nearest ten and hundred.
  • Many pages of practice to help solidify their rounding skills.

2. Triple Digit Addition:

• • Practice to reinforce carrying over and adding efficiently.
  • Word problems to apply addition skills to everyday situations.

3. Triple Digit Subtraction:

• • Practice problems that build confidence in subtracting larger numbers.
  • Problem-solving tasks to enhance critical thinking skills.

4. Quizzes and Assessments:

• • Quizzes to gauge understanding after each section.
  • Assessment to check understanding of NBT standard with Standard Based Rubric.

Why Choose This Unit?

• Aligned with common core standards.
• Fosters a deep understanding of rounding and triple-digit operations.
• Promotes a positive and enjoyable learning environment.

Equip your students with the mathematical skills they need to succeed! Download this all-inclusive unit today and watch your students become confident mathematicians.
(Note: This unit is designed for 3rd Grade. Please check the prerequisites to ensure suitability for your classroom.)

What's included in this unit?

• 17 Pages of Rounding Practice- Scaffolded Worksheets

  • 4 of these pages are estimation with rounding: 2 pages estimation to the nearest hundreds & 2 pages estimation to the nearest tens

• 15 Pages of 3 Digit Addition/Subtraction: 5 pages of Addition Practice, 5 pages of Subtraction Practice, 5 pages of Mixed Practice

• 1 Quiz covering Rounding Skills

• 1 Quiz covering Triple Digit Addition & Subtraction Skills

• 1 Assessment to check for understanding for the NBT 1 & 2 Standard in 3rd grade.

Teachers like you have said...

⭐️⭐️⭐️⭐️⭐️ Rita said "If you're a math teacher looking for an easy and effective way to help your students understanding the concept of rounding to the nearest 10, then you will not be disappointed!"

⭐️⭐️⭐️⭐️⭐️Julie E. said, "Extra practice and helpful resource for my 3rd graders. Thanks much!"

Check out some other popular products...

• Estimation with rounding to the nearest 100
• Rounding Mazes

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Explore a variety of engaging themes with our Write the Room Activities Bundle! Perfect for enhancing vocabulary and literacy skills, each themed set includes 12 hidden images for students to find, along with recording sheets, word walls, glossaries, and writing prompts.

Contents:

Dive into learning with our Write the Room Activities Bundle! This comprehensive bundle includes themed sets covering a wide range of topics: human body parts, human organs, construction, Easter counting 0-11, monster shapes, musical instruments, pirates, spring, summer, and zoo. More exciting themes will be added as they are created.

In each themed set, students will search for 12 hidden images related to the theme. Once they find the images, they will use one of the four recording sheets provided. Two recording sheets feature the images for reference, while the other two have primary lines for younger children.

Enhance vocabulary and literacy skills with two types of word walls: strips for easy display or a poster format with images and names. A glossary of words is included to introduce students to the definitions, along with a writing prompt sheet for additional writing practice.

Why You'll Love This Product:

Teachers, get ready to transform your classroom with our Write the Room Activities Bundle! This resource offers a fun and interactive way for students to explore different themes while reinforcing vocabulary, literacy, and writing skills. With a variety of themes to choose from, you can easily integrate these activities into your curriculum throughout the year.

Students will love the excitement of searching for hidden images and learning new words related to each theme. The colorful graphics and interactive nature of the activities will keep them engaged and motivated to learn.

Who This Product is For:

1. Elementary school teachers seeking engaging literacy activities for their classrooms.
2. ESL teachers looking for dynamic tools to teach vocabulary to English language learners.
3. Homeschooling parents seeking hands-on learning experiences for their children.
4. Special education teachers aiming to support vocabulary development in a multisensory way.
5. After-school program coordinators in need of fun and educational resources for their students.

Related Products

⭐ *GROWING BUNDLE* Letter Sounds Write the Room, Kindergarten Center Activities

⭐ Farm Write the Room, Kindergarten Center Activity

⭐ Ocean Write the Room, Kindergarten Center Activity

⭐ Outer Space Write the Room, Kindergarten Center Activity

How to get TeachShare credit to use on future purchases:

Please go to your “My Purchases” page (you may need to login). Beside each purchase you'll see a Provide Feedback button. Simply click it and you will be taken to a page where you can give a quick rating and leave a short comment for the product.
Each time you give feedback, TeachShare gives you feedback credits that you use to lower the cost of your future purchases. I value your feedback greatly as it helps me determine which products are most valuable for your classroom so I can create more for you.
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3rd Grade Multiplication Task Cards Game - 3rd Grade Math Bundle

This self-checking math activity will have your students asking to review their multiplication facts! Use this multiplication scavenger hunt as a whole group activity or as part of your math centers! This is a great activity to use when reviewing multiplication or as an extra practice tool!

Products Included:

• 2s Multiplication Fact Scavenger Hunt

• 3s Multiplication Fact Scavenger Hunt

• 4s Multiplication Fact Scavenger Hunt

• 5s Multiplication Fact Scavenger Hunt

• 6s Multiplication Fact Scavenger Hunt

• 7s Multiplication Fact Scavenger Hunt

• 8s Multiplication Fact Scavenger Hunt

• 9s Multiplication Fact Scavenger Hunt

• 10s Multiplication Fact Scavenger Hunt

• 11s Multiplication Fact Scavenger Hunt

• 12s Multiplication Fact Scavenger Hunt

• Mixed Multiplication Fact Scavenger Hunt

Each Product Includes:

• 12 cards
• Recording Sheet
• Answer Key

You May Also Like:

✨3rd Grade I have, Who Has Multiplication Game - 3rd Grade Math Bundle

✨Single-Digit Multiplication Worksheet Bundle - Grade 3 - Math Fluency Worksheet

✨Single-Digit Multiplication and Division Worksheet Bundle - Fact Fluency - 3rd

Terms of Use
This product is to be used in your classroom only. Please buy the correct number of licenses for the teachers using it.

TeachShare Bundle
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Doing a quick check assessment for 3rd grade math skills with math exit tickets makes it fun for kids and quick for the teacher. This full year of math exit tickets is the perfect bite-sized skills assessment to wrap up one math lesson before moving on to the next one!

**16 Math Exit Tickets sets include the following concepts:**n if you looking for a quick check assessment eand easy way to see if your students are learning the 3rd grade math skill that they need so they don't fall behind? 

16 Math Exit Tickets sets include quick check skills assessments of the following concepts:

• Properties of addition and subtraction
• Addition and subtraction within 1000
• Understanding multiplication and division
• Properties of multiplication and multiplication facts
• Using patterns for multiplication facts
• Division facts and fact families
• Using multiplication charts to multiply and divide
• Using multiplication to find area
• Multiplying by multiples of 10
• Solving 2-step problems 
• Understanding fractions as numbers
• Comparing fractions
• Time, capacity, and mass
• Classifying two-dimensional shapes
• Perimeter
• Reading and using data

You will love using these math exit tickets as a quick assessment of your daily 3rd grade math lessons all year long! Your students will love the lively designs and the few number of problems on each math exit ticket makes the work feel totally doable. 

Each half-page math exit ticket includes an "I can" statement and the opportunity for students to **assess their own learning by choosing "I got this!", "I am still practicing", or "I need help."**Each math exit slip also includes a few daily problems for students to solve related to the "I can ...:" statement.

These math exit tickets are adaptable for any 3rd grade math Common Core or NCTM-aligned curriculum. Math Exit Tickets are quick for students to complete, and even faster for teachers to grade!

This math exit tickets bundle includes 16 sets of math exit tickets, covering an entire year of 3rd grade math. Save over 30% by buying the bundle!

These math exit tickets come in two printing options: One with B&W clipart for early finishers to color and one without graphics for students that want to feel a little more grown-up.

___________________________________

Copyright © Curious Classroom Adventures.

Permission to copy for single classroom use only.

Sharing is kind. Please purchase additional licenses if you intend to share this product.

This bundle includes fluency cards for the following skills:

• Number Bonds Within 10
• Addition and Subtraction Within 5
• Ten Frames
• Addition to 18 (Vertical Equations)
• Addition to 10 (Horizontal Equations)
• Add Three Digits (3+4+6=13)
• Addition Equations with Missing Addends (5+_=11)
• Find the Unknown in a Subtraction Equation (12-_=6)
• Flexibility with Addition and Subtraction (Multiple Skills)
• Add Multiples of 10 to a number within 100 (22+30=52)
• Subtract Multiples of 10 from a number within 100 (34-20=12)
• Multiplication Facts to 12 (0x0 through 12x12)
• Find the Unknown Digit in a Multiplication Fact (8x_=24)
• Division Facts with Dividends to 120

Please view each individual product for details and a preview of what is included.

If you found this resource helpful, please leave a review to earn credits toward future TeachShare purchases!

December Activities Bundle includes all the things! Everything you need for December fun

The Montessori Snake Game is a classroom favorite! You'll get everything from addition and subtraction task cards (double-sided with the answers on the back!), to booklets (a fun alternative to worksheets) for children to record their answers, and even an exclusive JRMontessori game called Snake of 100.

Use the engaging activities in this bundle alongside the Montessori beads and your children will have fun practicing their linear addition and subtraction while improving their fluency. Note that the addition cards start out nice and easy with "Search for 10" or "Perfect 10" snakes.

Here's what's included:

Addition Snake Game Booklets

• 1 PDF with teacher information (preparation and basic presentation suggestions) to help you get this lesson up and running as soon as possible
• 1 PDF with the homeschool version of the Addition Snake Game Booklets 
• 4 PDFs with the classroom version of the Addition Snake Game Booklets
• 1 PDF with the Addition Snake Game answer key booklets

Addition Snake Game Cards (Bead Stair Version)

• 1 PDF with teacher information (preparation and basic presentation suggestions) to help you get this lesson up and running as soon as possible
• 1 PDF with 40 Addition Snake Game cards

Addition Snake Game Cards (Numeral Version)

• 1 PDF with teacher information (preparation and basic presentation suggestions) to help you get this lesson up and running as soon as possible
• 1 PDF with 40 Addition Snake Game cards

Subtraction Snake Game Booklets

• 1 PDF with teacher information (preparation and basic presentation suggestions) to help you get this lesson up and running as soon as possible
• 1 PDF with the homeschool version of the Subtraction Snake Game Booklets 
• 4 PDFs with the classroom version of the Subtraction Snake Game Booklets
• 1 PDF with the Subtraction Snake Game answer key booklets

Subtraction Snake Game Cards (Bead Stair Version)

• 1 PDF with teacher information (preparation and basic presentation suggestions) to help you get this lesson up and running as soon as possible
• 1 PDF with 40 Subtraction Snake Game cards

Subtraction Snake Game Cards (Numeral Version)

• 1 PDF with teacher information (preparation and basic presentation suggestions) to help you get this lesson up and running as soon as possible
• 1 PDF with 40 Subtraction Snake Game cards

Snake of 100 Game

• 1 PDF with all game materials

Here's what other teachers have said:

⭐⭐⭐⭐⭐ "This has been a great addition to our Montessori math area and the kids love it!"—Linda E.

⭐⭐⭐⭐⭐ "Excellent. Such a time saver . . . thank you.”—Denise L.

⭐⭐⭐⭐⭐ "Super Cute!! Love the mini booklets! So easy to print and prepare!!”—Chana G.

You did you know I also have a Snake Game that teaches roman numerals ?

⚠️ BUNDLE & SAVE! ⚠️ Save up to 30% on this resource and others by purchasing this item in a comprehensive bundle. Check out the Montessori Store Bundle and the Montessori Math Materials Bundle to see both amazing bundle options!

►► Have a question or need help with this resource? Please visit the FAQ Section, submit a help ticket, or ask a question on the Q&A tab!

✨ Keep up with all things Jessica Renee Montessori by completing any of the actions below:

• Become a Store Follower on TeachShare
• Follow Me on Instagram
• Like My Facebook Page

Get TeachShare credits toward future purchases:

After logging in, go to "My Purchases" and find the "Provide Feedback" button beside each product. Leave a fair rating and a comment about the resource, and that's it!

___________________________________

Copyright © JRMontessori

Permission to copy for single classroom use only.

Please purchase additional licenses if you intend to share this product.

This growing pack of 252 roll and cover math games help students practice fact fluency for addition and subtraction within 10 and 20, multiplication and division, and two and three digit addition and subtraction problems throughout the whole year! Use them for math centers, partner games, independent work, early finishers, morning work, small groups and tutoring. These games are perfect for kindergarten, first grade, second grade and third grade students!

⭐Save over 30% with this growing bundle!⭐

What's included:

• 120 roll and race games
• 132 seasonal/holiday themed roll and race games (includes color + bw)
• Optional recording pages (for seasonal/holiday themed)
• Direction page for each product

Seasons & Holidays Currently Included:

• Back to school
• Fall
• Halloween
• Thanksgiving
• Christmas
• Winter
• Valentine's Day
• St. Patrick's Day
• Spring
• Earth Day
• End of the Year / Summer

Each Season/Holiday Includes:

• Addition to 10 (2 games)
• Subtraction within 10 (2 games)
• Mixed review addition & subtraction within 10 (2 boards)
• Addition to 20 (2 games)
• Subtraction within 20 (2 games)
• Mixed review addition & subtraction within 20 (2 boards)

General Versions Currently Included:

• 4 boards for making 10 addition facts
• 20 boards for addition & subtraction within 10
• 20 boards for addition & subtraction within 20
• 20 boards for multiplication facts
• 20 boards for division facts
• 18 boards for 2 digit addition & subtraction (with and without regrouping)
• 18 boards for 3 digit addition & subtraction (with and without regrouping)

Dive into a world of discovery with this I Spy Activity Bundle! Each activity page features 6 themed images or shapes for students to search for and count. As they find each shape, they'll record the quantity at the bottom of the page, enhancing their counting skills. Once they've tallied everything, students can transfer their findings to one of the two included graphing sheets. One graph helps with basic counting, while the other is designed for more diverse number practice. This bundle covers a wide range of fun themes like camping, apple shapes, American flag shapes, bee shapes, and many more—perfect for keeping young learners engaged and excited. Plus, more themes will be added to the bundle as they're created!

Why You'll Love This Product: Teachers will adore this bundle for its versatility and the way it effortlessly combines counting, graphing, and theme-based learning. These activities provide an engaging way for students to practice math skills while having fun with themes that capture their imaginations. Whether it's counting apples, spotting bees, or finding shapes in a camping scene, students will be eager to complete these tasks. The bundle offers both color and black-and-white options, making it easy to print and use in various classroom settings.

Who This Product Is For:

• Preschool Teachers: Perfect for introducing counting and graphing in a fun, themed way.
• Kindergarten Teachers: Ideal for reinforcing number recognition and basic graphing skills.
• Homeschooling Parents: A great tool for adding a thematic, hands-on element to math lessons.
• Daycare Centers: Engaging activities that support early math skills development in a group setting.
• Summer School Programs: A creative way to keep math skills sharp while incorporating fun, seasonal themes.

Related Products

⭐ Apple I SPY Count and Graph for Preschool and Kindergarten

⭐ American Flag I SPY Count and Graph, 4th of July for Preschool and Kindergarten

⭐ Bees I SPY Count and Graph Shapes Game for Preschool and Kindergarten

⭐ Camping I SPY Count and Graph for Preschoolers and Kindergarten

This bundle includes fluency cards for the following skills:

• Number Bonds Within 10
• Addition and Subtraction Within 5
• Ten Frames
• Addition to 18 (Vertical Equations)
• Addition to 10 (Horizontal Equations)
• Add Three Digits (3+4+6=13)
• Addition Equations with Missing Addends (5+_=11)
• Find the Unknown in a Subtraction Equation (12-_=6)
• Flexibility with Addition and Subtraction (Multiple Skills)
• Add Multiples of 10 to a number within 100 (22+30=52)
• Subtract Multiples of 10 from a number within 100 (34-20=12)
• Multiplication Facts to 12 (0x0 through 12x12)
• Find the Unknown Digit in a Multiplication Fact (8x_=24)
• Division Facts with Dividends to 120

Please view each individual product for details and a preview of what is included.

If you found this resource helpful, please leave a review to earn credits toward future TeachShare purchases!

This mega bundle includes every single Montessori MATH resource in my store. That means 99 resources in total! You'll get card activities, booklets, games, posters, labels, and clip art. Addition to 10 practice with the Snake Game is the perfect early numeracy activity for Kindergarten and 1st grade, but there's so much more than that. You'll get a printable multiplication chart, blank multiplication charts to fill in, blank multiplication tables in booklet format, along with Base Ten Block activities (AKA Golden Beads in Montessori) for addition, subtraction, multiplication and division too!

✅ Check out the individual PREVIEWS for an in-depth look at this mega bundle!

Your Kindergarten, 1st grade, 2nd grade, and 3rd grade students can use everything in this bundle to supplement their learning with the Montessori math materials.

➩ Here's just some of what you will get:

• Math facts fluency practice booklets (all four operations)
• Addition and subtraction practice with the Montessori Snake Game
• Skip counting with the Montessori bead chains
• Addition with base ten blocks (or rather the Montessori Golden Beads) and subtraction, multiplication, and division too!
• Addition and subtraction with and without regrouping using the Montessori Stamp Game
• Naming and ordering fractions activities

AND SO MUCH MORE!

⚠️ BUNDLE & SAVE! ⚠️ Save up to 30% on this resource and others by purchasing this item in a comprehensive bundle. Check out the Montessori Store Bundle and the Montessori Math Materials Bundle to see both amazing bundle options!

►► Have a question or need help with this resource? Please visit the FAQ Section, submit a help ticket, or ask a question on the Q&A tab!

✨ Keep up with all things Jessica Renee Montessori by completing any of the actions below:

• Become a Store Follower on TeachShare
• Follow Me on Instagram
• Like My Facebook Page

Get TeachShare credits toward future purchases:

After logging in, go to "My Purchases" and find the "Provide Feedback" button beside each product. Leave a fair rating and a comment about the resource, and that's it!

___________________________________

Copyright © JRMontessori

Permission to copy for single classroom use only.

Please purchase additional licenses if you intend to share this product.

This bundle includes every single Montessori-friendly MATH ACTIVITY in my store as well as some PRE-WRITING and PRINTING worksheets, and lots of Montessori clip art!

Everything is appropriate for Lower Elementary children and is designed with independence in mind, which means even children who are not yet reading can use the material. I've also made everything as easy to prepare as possible.

The SNAKE GAME task cards all have the answer printed on the back so children can check their own work. In fact, this control of error is true of all the math cards! The Place Value BRING ME GAME cards even have the answers represented visually with the Golden Beads.

✅ Click on the PREVIEW to take a closer look at this amazing Montessori bundle!

⚠️ BUNDLE & SAVE! ⚠️ Save up to 30% on this resource and others by purchasing this item in a comprehensive bundle. Check out the Montessori Store Bundle and the Montessori Math Materials Bundle to see both amazing bundle options!

►► Have a question or need help with this resource? Please visit the FAQ Section, submit a help ticket, or ask a question on the Q&A tab!

✨ Keep up with all things Jessica Renee Montessori by completing any of the actions below:

• Become a Store Follower on TeachShare
• Follow Me on Instagram
• Like My Facebook Page

Get TeachShare credits toward future purchases:

After logging in, go to "My Purchases" and find the "Provide Feedback" button beside each product. Leave a fair rating and a comment about the resource, and that's it!

___________________________________

Copyright © JRMontessori

Permission to copy for single classroom use only.

Please purchase additional licenses if you intend to share this product.