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Stefan Stankovic

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Calculate A+B+C+D Look at the series (10, C, B, 59, A, 227, 451, 899, 1795, 3587, D, 14339, ...), determine the pattern, and find the unknown values (A, B, C and D) and calculate A+B+C+D!
Calculate the number 1316 NUMBERMANIA: Calculate the number 1316 using numbers [4, 6, 6, 6, 89, 814] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Mathematical Puzzle: IF 6+3=... Mathematical Puzzle: IF 6+3=39, 9+1=810 and 6+5=111 THEN 7+3=?

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