30 + 40 = 70
30 − 10 = 20
90 + 10 = 100
90 − 10 = 80
60 + 5 = 65
75 − 5 = 70
88 − 8 = 80
96 − 6 = 90
(40 + 40) − 30 = 50
(80 − 30) + 20 = 70
(20 + 30) − 10 = 40
(90 − 50) − 30 = 10
Вычисления:
30 + 10 = 40
$\snippet{name: op_column, sign: '+', x: '30', y: '10', z: '40'}$
30 − 10 = 20
$\snippet{name: op_column, sign: '-', x: '30', y: '10', z: '20'}$
90 + 10 = 100
$\snippet{name: op_column, sign: '+', x: '90', y: '10', z: '100'}$
90 − 10 = 80
$\snippet{name: op_column, sign: '-', x: '90', y: '10', z: '80'}$
60 + 5 = 65
$\snippet{name: op_column, sign: '+', x: '60', y: '5', z: '65'}$
75 − 5 = 70
$\snippet{name: op_column, sign: '-', x: '75', y: '5', z: '70'}$
88 − 8 = 80
$\snippet{name: op_column, sign: '-', x: '88', y: '8', z: '80'}$
96 − 6 = 90
$\snippet{name: op_column, sign: '-', x: '96', y: '6', z: '90'}$
(40 + 40) − 30 = 80 − 30 = 50
$\snippet{name: op_column, sign: '+', x: '40', y: '40', z: '80'}$
$\snippet{name: op_column, sign: '-', x: '80', y: '30', z: '50'}$
(80 − 30) + 20 = 50 + 20 = 70
$\snippet{name: op_column, sign: '-', x: '80', y: '30', z: '50'}$
$\snippet{name: op_column, sign: '+', x: '50', y: '20', z: '70'}$
(20 + 30) − 10 = 50 − 10 = 40
$\snippet{name: op_column, sign: '+', x: '20', y: '30', z: '50'}$
$\snippet{name: op_column, sign: '-', x: '50', y: '10', z: '40'}$
(90 − 50) − 30 = 40 − 30 = 10
$\snippet{name: op_column, sign: '-', x: '90', y: '50', z: '40'}$
$\snippet{name: op_column, sign: '-', x: '40', y: '30', z: '10'}$