Calculate 5+8
If 1+4=5, 2+5=12 and 3+6=21 then 5+8=?Correct answers: 10879
The first user who solved this task is Thinh Ddh.
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Radioactivity production patentIn 1940, a U.S. patent was issued to Enrico Fermi et al., for a process of producing radioactive substances (No. 2,206,634). |