2519 + 6748 = 9267
$\snippet{name: op_column, sign: '+', x: '2519', y: '6748', z: '9267'}$
 
1044 + 23991 = 25035
$\snippet{name: op_column, sign: '+', x: '1044', y: '23991', z: '25035'}$
 
10324 − 9655 = 669
$\snippet{name: op_column, sign: '-', x: '10324', y: '9655', z: '669'}$
 
820016 − 74068 = 745948
$\snippet{name: op_column, sign: '-', x: '820016', y: '74068', z: '745948'}$
 
11600 − (7019 − 5263) = 11600 − 1756 = 9844
1) $\snippet{name: op_column, sign: '-', x: '7019', y: '5263', z: '1756'}$;
2) $\snippet{name: op_column, sign: '-', x: '11600', y: '1756', z: '9844'}$.
 
5709 − (3200 − 1907) = 5709 − 1293 = 4416
1) $\snippet{name: op_column, sign: '-', x: '3200', y: '1907', z: '1293'}$;
2) $\snippet{name: op_column, sign: '-', x: '5409', y: '1293', z: '4416'}$.