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Solve Math Puzzle

IF 1234 + 4567 = 284, 3012 + 8888 = 640, 5111 + 9291 = 95 THEN 9378 + 9999 = ?

Correct answers: 35

The first user who solved this task is Roxana zavari.

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Julian Lowell Coolidge

Born 28 Sep 1873; died 5 Mar 1954 at age 80. American mathematician and educator noted for numerous published works in theoretical mathematics. He earned a B.A. degree at Harvard (1895), then a B.Sc. (1897) from Oxford, England, the first natural science degree ever awarded at Oxford. He began teaching at Groton School, Conn. (1897-99) where one of his pupils was Franklin D Roosevelt, the future U.S. president. Coolidge was an instructor at Harvard University, taking leave to study abroad (1902-04) with Corrado Segre at Turin and Eduard Studyat the University of Bonn ( Ph.D. 1904). When he returned to Harvard, he remained there for the rest of his career. Later in life, he took an interest in his subject's history, writing Mathematics of the Great Amateurs (1949).«

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