(1776 + 824) * 60 = 2600 * 60 = 156000
$\snippet{name: op_column, sign: '+', x: '1776', y: '824', z: '2600'}$
$\snippet{name: op_column, sign: '×', x: '2600 ', y: '60   ', z: '156000'}$
 
1776 + 824 * 60 = 1776 + 49440 = 51216
$\snippet{name: op_column, sign: '×', x: '824  ', y: '60', z: '49440 '}$
 
(3504 − 1224) : 4 = 2280 : 4 = 570
$\snippet{name: op_column, sign: '-', x: '3504', y: '1224', z: '2280'}$
$\snippet{name: long_division, x: 2280, y: 4}$
 
3504 − 1224 : 4 = 3504 − 306 = 3198
$\snippet{name: long_division, x: 1224, y: 4}$
$\snippet{name: op_column, sign: '-', x: '3504', y: '306', z: '3198'}$
 
70170 : 10 = 7017
 
40400 : 100 = 404