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Mathematics 7 Online
OpenStudy (anonymous):

What's 9+10

OpenStudy (anonymous):

16000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

OpenStudy (britanyashton):

Are you being serious? 10 +9 --- 19 .... 1+0=1, 0+9=9... think of it that way...if you are being serious.

OpenStudy (anonymous):

21

OpenStudy (anonymous):

Thank you someone finally gets it

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