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Mathematics 13 Online
OpenStudy (anonymous):

use number line to solve -10+(-5) 15 -15 -5 5

OpenStudy (saifoo.khan):

-10 -5 same signs, add them. -15 putting the sign of bigger number! :0

OpenStudy (anonymous):

exactly what he said =]

OpenStudy (anonymous):

hard as a rock ;)

OpenStudy (saifoo.khan):

Diamond is more harder! ^_^

OpenStudy (anonymous):

xD now u change it :)

OpenStudy (saifoo.khan):

lol.

OpenStudy (saifoo.khan):

i like diamond more than rock.

OpenStudy (anonymous):

lol

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