Раскройте скобки и вычислите: а) (84 - 27) – (39 - 27) – (84 - 39) =
б) – (59 - 36) – (47 - 59) + (47 - 36) =
в) (3 + 4) – (3 - 3) =
г) – (- 31 + 16) – (5 - 31) + (- 64 - 38) =

 Вычислите наиболее простым способом:        –234 + 27 – (35 – 234) =
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