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Adding Negative Numbers | Mean Girls and Darth Vader | PBSMathClub

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Published on Oct 16, 2013

What do The Force and Mean Girls have to do with adding positive and negative numbers? Click play to see....

Done watching the video? Take the Quiz to test your knowledge of additive inverses, adding negative numbers, the plastics, and Regina George. http://www.youtube.com/watch?v=N4Y1F3...

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CCSS.Math.Content.7.NS.A.1 Apply and extend previous understandings of addition and subtraction to add rational numbers; represent addition and subtraction on a horizontal or vertical number line diagram.

CCSS.Math.Content.7.NS.A.1a Describe situations in which opposite quantities combine to make 0.

CCSS.Math.Content.7.NS.A.1b Understand p + q as the number located a distance |q| from p, in the positive or negative direction depending on whether q is positive or negative. Show that a number and its opposite have a sum of 0 (are additive inverses). Interpret sums of rational numbers by describing real-world contexts.

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