teaching resource

Estimating Decimal Sums and Differences Task Cards

  • Updated

    Updated:  04 Oct 2023

Challenge your students to use rounding and benchmark values to estimate sums and differences of decimals with this set of 24 task cards.

  • Editable

    Editable:  Google Slides

  • Non-Editable

    Non-Editable:  PDF

  • Pages

    Pages:  1 Page

  • Curriculum
  • Grade

    Grade:  5

Curriculum

teaching resource

Estimating Decimal Sums and Differences Task Cards

  • Updated

    Updated:  04 Oct 2023

Challenge your students to use rounding and benchmark values to estimate sums and differences of decimals with this set of 24 task cards.

  • Editable

    Editable:  Google Slides

  • Non-Editable

    Non-Editable:  PDF

  • Pages

    Pages:  1 Page

  • Curriculum
  • Grade

    Grade:  5

Challenge your students to use rounding and benchmark values to estimate sums and differences of decimals with this set of 24 task cards.

Estimation With Decimals – Let’s Break it Down!

When teaching students about estimating with decimals, there are a few different methods that students can use. One way is using their knowledge of rounding to make each number an easy whole number to work with. A second method is to use benchmark values. This type of estimation involves using whole numbers and those with 0.25, 0.5 and 0.75. When using benchmark values, the hope is that the estimated sum or difference will be closer to the actual answer.

5th Grade Math Questions – Coming Right Up!

If you are looking for some estimation questions to add to your 5th grade math lessons, you have come to the right place! Teach Starter has created a set of 24 task cards for your students to practice estimating sums and differences with decimals. 

To complete these task cards, students will use rounding and benchmark values to solve standard practice problems as well as word problems. Additionally, this teacher-created resource comes with a recording sheet for students to write down their answers and an answer key for quick and easy grading!

Easily Prepare This Resource for Your Students

If you are ready to get your hands on this 5th-grade math activity, head on over to the green download button! Here, you can choose from the quick-print PDF file or the editable Google Slides document. If selecting the Google Slides option, please note that you will first be prompted to make a copy of the resource to your personal drive before accessing it.

Consider printing the task cards on cardstock and laminating them to ensure they can last for years to come!


This resource was created by Cassandra Friesen, a teacher in Colorado and a Teach Starter Collaborator. 


Additional Activities for Your Estimation Lessons!

Don’t stop there! We’ve got more activities and resources that cut down on lesson planning time:  

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Estimating Decimal Sums and Differences – Worksheet

Refine rounding skills with an estimating decimal sums and differences worksheet.

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Download this set of 24 task cards to help your students practice estimating decimal sums and differences with benchmark numbers.

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