Mathematical Puzzle: IF 23+4...
Mathematical Puzzle: IF 23+478-593=5.588 and 1389+99-29=34.364 THEN 87+57-56=?Correct answers: 16
The first user who solved this task is Erkain Mahajanian.
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Black American patentIn 1960, black American inventor, F. M. Jones was issued a U.S. patent for a "Thermostat and Temperature Control System" (No. 2,926,005). |