Mathematical Puzzle: IF 22+4...
Mathematical Puzzle: IF 22+4=24, 13+6=16 and 80+2=82 THEN 67+9=?Correct answers: 164
The first user who solved this task is Nasrin 24 T.
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Metal screen patentIn 1884, expanded metal screen was patented by John Golding (No. 297,383). |