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Mathematics 7 Online
OpenStudy (anonymous):

(-6)(4)?

OpenStudy (schrodinger):

Let me first ask, do you know how positives and negatives multiply? This is pretty basic so what exactly do you know about multiplication?

OpenStudy (anonymous):

i just have a hard time with the negatives

OpenStudy (schrodinger):

No problem, so what would six times four be then? (6)(4). Just ignore the negative sign for the moment.

OpenStudy (anonymous):

24

OpenStudy (ajprincess):

(-)*(-)=(+) (-)*(+)=(-)

OpenStudy (schrodinger):

Then, since it's a negative number, it would literally just be the negative of that. So (6)(-4) = -24.

OpenStudy (anonymous):

but its (-6)(4)?

OpenStudy (anonymous):

Thanks @ajprincess. that really helped... you too Schrodinger

OpenStudy (ajprincess):

You are welcome @aaron94

OpenStudy (schrodinger):

Yup, it's \[(-6)(4) = -24.\]

OpenStudy (anonymous):

what about (-50) รท (-2)?

OpenStudy (schrodinger):

When you divide a negative number by a negative number, it's what's commonly referred to as a "double negative", and the number comes out positive. So \[(-50)\div(-2) = (50)\div(2)\] So just divide 50 by 2. WHat do you get?

OpenStudy (anonymous):

25

OpenStudy (ajprincess):

(-)/(-)=(+) (-)/(+)=(-) (+)/(-)=(-) (+)/(+)=(+)

OpenStudy (ajprincess):

U are right. That's the answer.

OpenStudy (anonymous):

thanks @ajprincess those are really good notes

OpenStudy (anonymous):

what about a (+) * (-)

OpenStudy (ajprincess):

It will be (-)

OpenStudy (anonymous):

ok thanks :)

OpenStudy (ajprincess):

(+)*(+)=(+) yw

OpenStudy (anonymous):

-24

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