(100 − 50) − 20 = 30
60 + (40 − 10) = 90
(45 + 5) + 5 = 55
(93 − 23) − 32 = 38
(30 + 8) − 20​​​​​​​ = 18
(67 − 17) − 7 = 43
100 − (56 + 44) = 0
49 + (99 − 50) = 98
Вычисления:
(100 − 50) − 20 = 50 − 20 = 30
$\snippet{name: op_column, sign: '-', x: '100', y: '50', z: '50'}$
$\snippet{name: op_column, sign: '-', x: '50', y: '20', z: '30'}$
60 + (40 − 10) = 60 + 30 = 90
$\snippet{name: op_column, sign: '-', x: '40', y: '10', z: '30'}$
$\snippet{name: op_column, sign: '+', x: '60', y: '30', z: '90'}$
(45 + 5) + 5 = 50 + 5 = 55
$\snippet{name: op_column, sign: '+', x: '45', y: '5', z: '50'}$
$\snippet{name: op_column, sign: '+', x: '50', y: '5', z: '55'}$
(93 − 23) − 32 = 70 − 32 = 38
$\snippet{name: op_column, sign: '-', x: '93', y: '23', z: '70'}$
$\snippet{name: op_column, sign: '-', x: '70', y: '32', z: '38'}$
(30 + 8) − 20​​​​​​​ = 38 − 20 = 18
$\snippet{name: op_column, sign: '+', x: '30', y: '8', z: '38'}$
$\snippet{name: op_column, sign: '-', x: '38', y: '20', z: '18'}$
(67 − 17) − 7​​​​​​​ = 50 − 7 = 43
$\snippet{name: op_column, sign: '-', x: '67', y: '17', z: '50'}$
$\snippet{name: op_column, sign: '-', x: '50', y: '7', z: '43'}$
100 − (56 + 44) = 100 − 100 = 0
$\snippet{name: op_column, sign: '+', x: '56', y: '44', z: '100'}$
$\snippet{name: op_column, sign: '-', x: '100', y: '100', z: '0'}$
49 + (99 − 50) = 49 + 49 = 98
$\snippet{name: op_column, sign: '-', x: '99', y: '50', z: '49'}$
$\snippet{name: op_column, sign: '+', x: '49', y: '49', z: '90'}$