Common Core Sheets 

The Number System 
Apply and extend previous understandings of operations with fractions to add, subtract, multiply, and divide rational numbers. 
1. Apply and extend previous understandings of addition and subtraction to add and subtract rational numbers; represent addition and subtraction on a horizontal or vertical number line diagram. 
a. Describe situations in which opposite quantities combine to make 0. For example, a hydrogen atom has 0 charge because its two constituents are oppositely charged. 
Example (Hover to Enlarge) 
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Standard Form 7ns1a
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Each worksheet has 20 problems adding and subtracting with negative numbers.
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Standard Form With Numberline 7ns1a
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Each worksheet has 10 problems adding and subtracting negative numbers with a helper numberline.
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Adding & Subtracting to Zero 7ns1a
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Each worksheet has 20 problems adding and subtracting to zero with positive and negative numbers.
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