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Subtraction, Place Value, and Base 10 Blocks: Regrouping 2-digit Numbers

Subtraction, Place Value, and Base 10 Blocks:  Regrouping 2-digit Numbers
Product Description
Everyone knows that Base 10 Blocks are a natural way to get across the concepts of place value for Ones, Tens, Hundreds, and regrouping a Ten into 10 Ones, a Hundred into 10 Tens, and so on.

But actually using them is a little more difficult. These pages have illustrations of Base 10 Blocks and a sequence that guides children through the steps of regrouping, providing them with a template in which to write the problems themselves ensuring that they align the Ones digits.

The Smartboard file has Tens and Ones grouped for each individual problem on a Place Value Mat. The teacher can demonstrate the regrouping process using exactly the same sequence you want your students to use.

Common Core Standards:

2.NBT.5: “Fluently add and subtract within 100 using strategies based on place value…”

2.NBT.7: “Add and subtract within 1000, using concrete models or drawings and strategies based on place value…”

Subjects: Math, Basic Operations, Arithmetic, Place Value

Level: Grades 2

Duration: 8 pages, 2-3 days

Answer Key: Included

An interactive Smartboard 10 file is also included. This allows you to show the regrouping process using images of Base 10 Blocks. Click on the .zip file icon, and you can open the PDF and Smartboard files separately.
Total Pages
8 pages
Answer Key
Teaching Duration
3 days
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Paul Murray

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