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

2 Digit Addition with Regrouping Activity #1

This resource includes 40 interactive Google slides, 6 printable worksheets, and an Easel Ready Activity for students to practice adding double digit numbers with regrouping. This math center uses the place value strategy of base 10 blocks to practice solving addition problems with 2 digit addends up to 100. 

The interactive slides allow students to drag moveable base-10 blocks into the tens and ones place to model the addition problem. Students can practice regrouping by moving groups of 10 ones into the box and exchanging the 10 ones for 1 ten. This is a great visual hands on activity to help students conceptually understand how to regroup numbers when moving to the standard algorithm. Every slide gives students the opportunity to practice the problem using the place value mat with base-10 pieces and the standard algorithm.

The resource also includes a blank worksheet template as well as a blank slides template to create additional problems for your students!

The slides and worksheets are divided into two differentiated levels. The first resource allows students to practice adding double digit numbers with sums up to 50 and the second resource allows students to practice adding double digit numbers with sums from 50-100. Each slideshow contains a video link that models how to add double digit numbers using base-10 blocks. 

This resource can be used in Google Classroom for math centers, independent practice, distance learning, or for small group mini-lesson. In addition, this can be used as a teaching resource for a whole class lesson.  Simply project the Google Slides presentation on the whiteboard, use the moveable pieces to model each problem, and give students the worksheet or place value mat to follow along with the lesson. 

Students will understand how to add two digit numbers with regrouping using Base-10 blocks with sums up to 100.

You will need to have a google account to access the google slides, but you do not need to have a Google classroom to assign this resource to students.  

Included

• Easel Ready Activity- (all answer boxes and place value pieces have been added to every problem)
• PDF file with instructions for use
• Link to make copy of Google Slides PowerPoint 1 (Sums up to 50)
• Link to make copy of Google Slides PowerPoint 2 (Sums 50-100)
• Video instructions (You-Tube video link)
• Example Slide to clarify instructions
• Worksheet version of both Powerpoints
• Answer Key
• Place Value Mat- put in a plastic sleeve for students to use with a dry erase marker 
• Blank Google Slide Template- Create additional problems!
• Blank worksheet template- Create additional practice activities!

This activity is just right for 2nd grade students learning double digit addition with regrouping for the first time. 

This resource is aligned to the CCSS.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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