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②Calculați: (1)-(518) b 17 5 + 5 1 24 36 60 18 d 7 17 1 + 13 1 13 17 + 5 1 - f 9 10 18 27 18 63 45 36 27 7 17 + 16 5 (4-1)-( 15 1 16 24 - 5 3 35 58 1 40​