Teach 2 digit subtraction using base 10 blocks with this hands on digital math resource. Use movable base 10 blocks to practice subtraction without regrouping using a place value strategy. Save time with this no prep resource that includes: 30 interactive slides, a self-grading Google form, subtraction worksheets, a detailed answer key, and more!

The following formats are included:

★Google Slides Digital Resource

• 20 interactive slides with base 10 blocks-Each slide requires students to model the subtraction problem with base ten blocks as well as fill in the subtraction standard algorithm. 
• 10 interactive slides with standard algorithm only
• 2 Digit Subtraction No Regrouping Video Model
• Example slide
• Digital place value manipulatives: base 10 blocks 
• Fill in text boxes

★Recording Sheet & Answer Key

★2 Digit Subtraction with Regrouping Worksheet & Answer Key

★Printable place value mat

★Self-Grading Google Form

★Google Slides Answer Key 

• Shows all problems modeled

WHY?

Using base 10 blocks is an effective way to support students in developing a conceptual understanding of subtraction. Representing equations with concrete models helps students understand why their answer is reasonable, leading students to develop a deeper knowledge of subtraction than just computing an algorithm.  

The slides are designed for students to simultaneously model subtraction equations with base 10 blocks and the standard algorithm. Building a correlation between the equation and the physical model will help students build a strong foundation for subtraction as they move on to more advanced skills.  

When teaching subtraction with regrouping, the concept of borrowing or carrying can be extremely confusing to students. Once students master subtracting numbers without regrouping using base 10 blocks, they can move onto subtraction with regrouping using the same model.

SAVE TIME and ENERGY creating activities for students with these no prep ready to go math centers. 

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WHO? This set is designed for first and second grade students first learning subtracting double digit numbers. 

Common Core Aligned to 2nd grade Number & Operations in Base 10 Standard.

CSS.MATH.CONTENT.2.NBT.B.5

Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

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WHAT’S INCLUDED:

★Google Slide Digital Resource

• 20 interactive slides to solve double digit subtraction problems with base 10 blocks

  • Moveable pieces
  • Fill-in text boxes
  • Place mat to model equation with base 10 pieces
  • Standard Algorithm

• 10 interactive slides to solve double digit subtraction with standard algorithm

• Example slide

• Video Model- (youtube link) to show stow students how to complete activity

• Blank slide to create additional problems

★2 Digit Subtraction NO Regrouping Worksheets

• All problems in slides included in worksheets
• Worksheet Answer keys

★Answer Key Slides

• All problems modeled on answer key

★Recording Sheet

• Printable sheet for students to record answers
• Answer key

★Self-Grading Google Form

• Assign to students after completing activity
• Students can input their answers from the recording sheet into the Google form to receive immediate feedback
• Feedback answers include link to picture of answer key slide
• SAVE TIME & ENERGY going through each student’s Google Slide to check their answers!

★Easel Activity

• Slides added to Easel for students to complete 
• Answer boxes and place value pieces added for each problem

★2 Printable Place Value Mats

• Complete problems with physical base 10 pieces or dry erase markers

★PDF File with instructions for use and access to digital resources

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HOW TO USE? 

• Assign to students via Google classroom for math centers, independent practice, partner work, or distant learning
• Teach a Mini lesson on 2 digit subtraction with borrowing for whole class, small groups, or intervention
  • Project the Google Slides presentation on the whiteboard, use the movable base 10 blocks to model each problem, and give students the place value mat or subtraction worksheet to follow along with the lesson

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You may also like:

Addition & Subtraction Strategies- Anchor Charts & Posters

2 Digit Addition No Regrouping- Base 10 - Google Slides - Math Centers

Double Digit Addition with Regrouping #1- Base 10 Blocks- Digital Math Center

2 digit Addition with Regrouping #2- Base 10 Blocks- Google Slides Math Center

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Created by Samantha Osleger, ©SPO RESOURCES.

All rights reserved by the author. This purchase is for single classroom use only. 

Feel free to send me an email sporesources.teach@gmail.com if there is anything I can help you with!

I hope this double digit subtraction with base 10 blocks digital resource is an effective tool to help your students develop their understanding of subtraction!