11 111 – 3 939 + 2 121 = 9 293
86 009 – 6 009 + 3 030 303 = 3 110 303
1 928 – 630 : 126 * 156 = 1 148
12 * 15 + 2 000 : 100 + 87 654 = 87 854
Вычисления:
$\snippet{name: op_column, sign: '-', x: '11111', y: '3939', z: '7172'}$
$\snippet{name: op_column, sign: '+', x: '7172', y: '2121', z: '9293'}$
$\snippet{name: op_column, sign: '-', x: '86009', y: '6009', z: '80000'}$
$\snippet{name: op_column, sign: '+', x: '80000', y: '3030303', z: '3110303'}$
$\snippet{name: long_division, x: 630, y: 126}$
$\snippet{name: op_column, sign: '.', x: '156', y: '5', z: '780'}$
$\snippet{name: op_column, sign: '-', x: '1928', y: '780', z: '1148'}$

2000 : 100 = 20 * 100 : 100 = 20 * 1 = 20
180 + 20 = 100 + 80 + 20 = 100 + 100 = 200
$\snippet{name: op_column, sign: '+', x: '87654', y: '200', z: '87854'}$