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Mathematics 20 Online
OpenStudy (anonymous):

find the value expression 78 - 61

OpenStudy (saifoo.khan):

200

OpenStudy (saifoo.khan):

you had 78 laptops, you gave 61 to me.. now how many are you left with>

OpenStudy (anonymous):

but.. lol thats not a option

OpenStudy (saifoo.khan):

lol, there must be an option as 17

OpenStudy (saifoo.khan):

tick that one.

OpenStudy (anonymous):

17, -139,-17,139

OpenStudy (saifoo.khan):

seventeen.

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