Are You Getting Ready to Start Teaching How to Estimate Differences?

Third Grade Teachers have you started teaching How to Round to Estimate the Differences? You have come to the right blog post, since I love third grade math and I have lessons, tips, resources, and a freebie for YOU!
Estimate the Difference, this blog post has got some great lessons, tips, resources and freebies for YOU 3rd Grade Go Math 1.8 Rounding to Estimate Differences. #FernSmithsClassroomIdeasRounding to Estimate the Difference, I've got some great lessons, tips, resources and freebies for YOU!

A quick way to estimate the difference of two numbers is to round each number and then subtract the rounded numbers. {See this previous post for help on rounding.} More often than naught, this won't be the exact answer but it may be close enough for some purposes. Students need this mental math not only for future math classes and math procedures, but it is also an excellent life skill. Do you have enough money for all your groceries? Did the cashier give you the right amount of change back? When you relate math to MONEY, even eight year old ears perk up! Problem solving extends to all aspects of their world.

Estimate the Difference, this blog post has got some great lessons, tips, resources and freebies for YOU 3rd Grade Go Math 1.8 Rounding to Estimate Differences. #FernSmithsClassroomIdeas

Once your students have a strong foundation of rounding, you can move on to estimating the difference. Estimation is a powerful mathematical mental tool to be used both in solving problems and in checking the answer to see if it is reasonable.

Tips to Introduce Your Lesson...
How to estimate a difference by rounding:
  • Round each number in the problem.
  • Subtract the rounded numbers together, mental math is even better.
More reasons WHY you would use rounding to estimate the difference:
  • Check to see if you have about enough money to pay for your meal at restaurant before you order. Lobster or hamburger?
  • Get a ball park idea to double check your answer to a problem. Is 300 an intelligent answer for 992 - 682?

Once you're done with your lesson, I have a variety of resources to help with your spiral review, use them in your math centers, small group lessons, seat work, partner work, the possibilities are endless! 


This resource has be revised and upgraded August 13, 2020. I have left the boy with the large pencil that so many teachers liked and a FREE Added Bonus! So there are now more pages than before. Please see the photos and previews for exact pictures of this resource. If you own this resource, simple go to your "My Purchases" page on TpT and download the newer version! :)
Color By Number to Estimate Differences, this blog post has got some great lessons, tips, resources and freebies for YOU for 3rd Grade Go Math 1.8 Estimate Differences. #FernSmithsClassroomIdeas
Estimate Differences Color By Number

Estimating based on Place Value is an essential skill to master in third grade. Each page in this 3rd Grade Go Math 1.8 Estimate Differences Color By Number resource reinforces those skills. Your students will adore these SIX Color By Number worksheets while learning and reviewing important place value skills at the same time! With the SIX Answer Keys also included, this helps you quickly and efficiently check your students work in a very short amount of time.
Color By Number to Estimate Differences, this blog post has got some great lessons, tips, resources and freebies for YOU for 3rd Grade Go Math 1.8 Estimate Differences. #FernSmithsClassroomIdeas
Estimate Differences Color By Number

** Additional Important Information **

In this resource, I have no math problems on the cute little children's skin or hair, allowing your students to select any skin tone color and hair color. The directions read, "You pick the color for any empty areas." This also allows for some creativity after their math is done by selecting additional colors of their choice for the borders and other blank remaining areas. This feature is a real hit with my teacher buyers!
Color By Number to Estimate Differences, this blog post has got some great lessons, tips, resources and freebies for YOU for 3rd Grade Go Math 1.8 Estimate Differences. #FernSmithsClassroomIdeas
Estimate Differences Color By Number
This newly revised Common Core page is perfect to use as a learning focus board poster or to include in a work packet. Excellent for Fast Finishers, Staggered Arrival Morning Work, or to send home for a Distance Learning booklet. 
Color By Number to Estimate Differences, this blog post has got some great lessons, tips, resources and freebies for YOU for 3rd Grade Go Math 1.8 Estimate Differences. #FernSmithsClassroomIdeas
Estimate Differences Color By Number
This adorable Estimate Differences Color By Number page has an adorable little boy with an over sized pencil and he is happy and ready to start his day! This page is part of the older resource, but many of my teacher buyers loved this page so much, with many more math problems, that I left it in the resource as an added FREE bonus.
Color By Number to Estimate Differences, this blog post has got some great lessons, tips, resources and freebies for YOU for 3rd Grade Go Math 1.8 Estimate Differences. #FernSmithsClassroomIdeas
Estimate Differences Color By Number
This newly revised Cover Sheet is perfect to turn these worksheets into a work packet. Excellent for Fast Finishers, Staggered Arrival Morning Work, or to send home for a Distance Learning booklet. 
Color By Number to Estimate Differences, this blog post has got some great lessons, tips, resources and freebies for YOU for 3rd Grade Go Math 1.8 Estimate Differences. #FernSmithsClassroomIdeas
Estimate Differences Color By Number
Answer Keys for EVERY PAGE are also included. This helps you quickly and efficiently check your students work in a very short amount of time.
Color By Number to Estimate Differences, this blog post has got some great lessons, tips, resources and freebies for YOU for 3rd Grade Go Math 1.8 Estimate Differences. #FernSmithsClassroomIdeas
Estimate Differences Color By Number
SIX Total Pages of Student Work

  • This adorable Estimate Differences Color By Number page has an adorable little boy with his tablet and his headset just ready to start the day and learn some great things! This page is part of the new updates to this resource, with new, cute, crisp clip art.
  • This adorable Estimate Differences Color By Number page has a cute rainbow and clouds in a large open sky, that your students will love. This page is part of the new updates to this resource, with new, cute, crisp clip art.
  • This adorable Estimate Differences Color By Number page has a sweet stack of books with an apple on top!
  • This adorable Estimate Differences Color By Number page has a little girl in the corner, for your students to color when they are done. It has 18 problems and the directions state, Estimate, then find the difference. All of the problems are 2-digit by 2-digit subtraction only.
  • This adorable Estimate Differences Color By Number page has a little girl in the corner, for your students to color when they are done. It has 18 problems and the directions state, Estimate, then find the difference. All of the problems are 3-digit by 3-digit subtraction only.
  • This adorable Estimate Differences Color By Number page has an adorable little boy with an over sized pencil and he is happy and ready to start his day! This page is part of the older resource, but many of my teacher buyers loved this page so much, with many more math problems, that I left it in the resource as an added FREE bonus.
Color By Number to Estimate Differences, this blog post has got some great lessons, tips, resources and freebies for YOU for 3rd Grade Go Math 1.8 Estimate Differences. #FernSmithsClassroomIdeas
*** Terrific Teaching Tip ***
Terrific for an Emergency Sub Tub or Homework!

*** CLASSROOM USE IDEAS ***
  • math center assignments
  • small group work
  • morning work worksheet
  • RTI Remediation
  • seat work
  • substitute teacher days
  • homework
  • morning work tubs
  • independent practice
  • early finishers
  • tutoring
  • clip board time worksheet
  • early morning arrival time
  • indoor recess
3rd Grade Go Math 1.8 Rounding to Estimate Differences Center and Printables 
3rd Grade Go Math 1.8 Rounding to Estimate Differences Center and Printables
 
 3rd Grade Go Math 1.8 Rounding to Estimate Differences Task Cards 
 
Task Cards Also Come With an Easy to Print Black and White Version... 
Perfect for Saving Ink and Printing on Colored Paper.

This Task Card Resource Also Includes an 
Answer Key / Student Self Checking Sheet. 
3rd Grade Go Math 1.8 Rounding to Estimate Differences Task Cards

https://www.teacherspayteachers.com/Product/3rd-Grade-Go-Math-Lesson-18-Rounding-to-Estimate-Differences-Bundle-1618062 


3rd Grade Go Math 1.8 Rounding to Estimate Differences Center and Printables
3rd Grade Go Math 1.8 Rounding to Estimate Differences Task Cards

https://www.teacherspayteachers.com/Product/3rd-Grade-Go-Math-18-Rounding-to-Estimate-Differences-Task-Cards-3107714

Free Color By Numbers for 1.8 Rounding to Estimate Difference


Common Core State Standards
CCSS.MATH.CONTENT.3.NBT.A.1
Use place value understanding to round whole numbers to the nearest 10 or 100.

CCSS.MATH.CONTENT.3.NBT.A.2
Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.

CCSS.MATH.CONTENT.4.NBT.A.3
Use place value understanding to round multi-digit whole numbers to any place.



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