Вычисли и сделай проверку, поменяв слагаемые местами:
106 + 294 + 530;
472 + 280 + 198;
620 + 137 + 209.

$\snippet{name: op_column_rows, args: ['106', '+294', '+530'], solution: '930'}$
Проверка:
$\snippet{name: op_column_rows, args: ['294', '+530', '+106'], solution: '930'}$
$\snippet{name: op_column_rows, args: ['472', '+280', '+198'], solution: '950'}$
Проверка:
$\snippet{name: op_column_rows, args: ['280', '+198', '+472'], solution: '950'}$
$\snippet{name: op_column_rows, args: ['620', '+137', '+209'], solution: '966'}$
Проверка:
$\snippet{name: op_column_rows, args: ['137', '+209', '+620'], solution: '966'}$