Adding and Subtracting Signed Numbers | YouTube Challenge | PBSMathClub

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Wanna challenge your knowledge about how to add and subtract negative numbers? Take our interactive quiz. Get the answer right, we'll send you to some heroic YouTube successes. Get it wrong... then one of us will help you out so you can get it right. Good Luck! Hannah, Jazmin, Jacob, Madison, Grace.

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COMMON CORE CCSS
CCSS.Math.Content.7.NS.A.1d
Apply properties of operations as strategies to add and subtract rational numbers.
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My class is furious because we have been working on question 5 for a long time and keep getting positive 14.  What's going on?  See you in middle school! >:(

fishystickboi
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so does the quiz feature no longer work or am I doing something wrong? I used to use this for my class but now it seems we can no longer click on the choices.

lysaundrapersaud
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The links don't work, and question 5 should be 14.

amberryckman
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The answer to the last questions is positive 14, not negative.

allisonjohnson
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Ummm...the answer to question 5 is positive 14. Please fix this to avoid confusing more students.

marianskaggs