(27 + 45) + 8 = 70 − неверно
96 − (13 + 57) = 26 − верно
(86 + 14) − 50 = 50 − верно
(78 − 15) + 29 = 82 − неверно
Вычисления:
(27 + 45) + 8 = 72 + 8 = 80
$\snippet{name: op_column, sign: '+', x: '27', y: '45', z: '72'}$
$\snippet{name: op_column, sign: '+', x: '72', y: '8', z: '80'}$
96 − (13 + 57) = 96 − 70 = 26
$\snippet{name: op_column, sign: '+', x: '13', y: '57', z: '70'}$
$\snippet{name: op_column, sign: '-', x: '96', y: '70', z: '26'}$
(86 + 14) − 50 = 100 − 50 = 50
$\snippet{name: op_column, sign: '+', x: '84', y: '14', z: '100'}$
$\snippet{name: op_column, sign: '-', x: '100', y: '50', z: '50'}$
(78 − 15) + 29 = 63 + 29 = 92
$\snippet{name: op_column, sign: '-', x: '78', y: '15', z: '63'}$
$\snippet{name: op_column, sign: '+', x: '63', y: '29', z: '92'}$