56 - (29 - 27) + 15 = . 28 - (27 - 3) + 9 = . 85 + (42 - 18) - 15 = . 55 + (90 - [45 - (6 + 9)]) = . (122 - [(13 + 29) - 18]) - 9 = . (2 - 1) + (4 − 3) + … + (2012 − 2011) = . (2 - 1) + (4 − 3) + … + (2014 − 2013) = .
Задание

Запиши ответы

  1. \( 56 - (29 - 27) + 15 = \) [ ].
  2. \(28 - (27 - 3) + 9 = \) [ ].
  3. \(85 + (42 - 18) - 15 = \) [ ].
  4. \(55 + (90 - [45 - (6 + 9)]) = \) [ ].
  5. \((122 - [(13 + 29) - 18]) - 9 = \) [ ].
  6. \( (2 - 1) + (4 − 3) + … + (2012 − 2011) = \) [ ].
  7. \( (2 - 1) + (4 − 3) + … + (2014 − 2013) = \) [ ].