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Mathematics 14 Online
OpenStudy (anonymous):

Add. -47 + -19 A. -28 B. 28 C. 66 D. -66

OpenStudy (mathstudent55):

When you add two positive numbers or two negative numbers, just add the numbers without the signs. Then if both numbers were positive, the answer is positive. If both numbers were negative, the answer is negative.

OpenStudy (superflytyguy):

-66

OpenStudy (mathstudent55):

For example: What is -5 + -7 ? Both numbers are negative, so drop the signs and add 5 + 7 which is 12. Then since both numbers were negative, the answer is -12. So -5 + -7 = -12

OpenStudy (anonymous):

so is I D.-66 @mathstudent55

OpenStudy (superflytyguy):

Yes

OpenStudy (superflytyguy):

Negative + Neagative = Negative

OpenStudy (superflytyguy):

*Negative

OpenStudy (mathstudent55):

Let's see: -47 + -19 Change the numbers to 47 and 19 and add 47 + 19. 47 + 19 = 66 Since the numbers were originally negative, the naswer is negative, sop -47 + -19 = -66 You are correct! You deserve a medal!

OpenStudy (anonymous):

thx u deserve one too

OpenStudy (superflytyguy):

So do you for proving the theorem!

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