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Decomposing Numbers: Decomposition Addition Pack

Grade Levels
1st - 3rd
Standards
Formats Included
  • PDF
Pages
19 pages
$2.75
$2.75
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Description

Addition with multiple methods and decomposing numbers is a big part of the Common Core. This product is perfect to help students learn another way to add two double digit numbers, by breaking them down into tens and ones using number bonds.

This product includes:

-3 mini anchor charts/posters (decomposing a number, decomposition addition without regrouping, decomposition addition with regrouping)

-2 worksheets for double digit decomposition addition without regrouping and answer keys

-2 worksheets for double digit decomposition addition with regrouping and answer keys

-2 assessments (one without regrouping and one with regrouping) and answer keys

-one cut/paste sorting activity for decomposing double digit numbers


Common Core Alignment:
2OAB2
2NBTB7
2NBTB6

Be sure to check out my other math products:

Base Ten Addition Pack

Partial Sum Addition Pack

Common Core Decomposing Numbers Sorting Fun

Partial Sum Holiday Pack

February Multiple Methods Addition Pack

January Multiple Methods Addition Pack

Partial Sum Triple Digit Addition Pack


Total Pages
19 pages
Answer Key
Included
Teaching Duration
N/A
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Standards

to see state-specific standards (only available in the US).
Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.
Add up to four two-digit numbers using strategies based on place value and properties of operations.

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