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Mathematics 8 Online
OpenStudy (anonymous):

Determine the sum or difference in clock 12 arithmetic. (7 + 10) + (8 + 7) A. 7 B. 8 C. 32 D. 2

jimthompson5910 (jim_thompson5910):

(7 + 10) + (8 + 7) (mod 12) 17+15 (mod 12) 5 + 3 (mod 12) 8 (mod 12) So (7 + 10) + (8 + 7) = 8 (mod 12)

OpenStudy (anonymous):

thanx

jimthompson5910 (jim_thompson5910):

yw

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