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Mathematics 7 Online
OpenStudy (anonymous):

Evaluate: −6 − (−4) A.−10 B. −2 C. 24 D. 2

OpenStudy (precal):

double negative turns into a positive

OpenStudy (precal):

|dw:1345513615845:dw|

OpenStudy (precal):

if you owe me 6 dollars but you only have 4 dollars to give me, do you still owe me money?

OpenStudy (anonymous):

-2

OpenStudy (precal):

yes you owe me 2 dollars

OpenStudy (precal):

think of negative numbers like a frown and positive numbers like a smile

OpenStudy (precal):

|dw:1345513744091:dw| a frown and a smile make a zero ie they cancel out|dw:1345513770965:dw|

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