534 + 246 = 780
$\snippet{name: op_column, sign: '+', x: 534, y: 246, z: 780}$
Проверка:
$\snippet{name: op_column, sign: '-', x: 780, y: 246, z: 534}$
 
471 − 254 = 534
$\snippet{name: op_column, sign: '-', x: 471, y: 254, z: 534}$
Проверка:
$\snippet{name: op_column, sign: '+', x: 217, y: 254, z: 471}$
 
847 − 459 = 388
$\snippet{name: op_column, sign: '-', x: 847, y: 459, z: 388}$
Проверка:
$\snippet{name: op_column, sign: '+', x: 388, y: 459, z: 847}$
 
208 + 532 = 740
$\snippet{name: op_column, sign: '+', x: 208, y: 532, z: 740}$
Проверка:
$\snippet{name: op_column, sign: '-', x: 740, y: 532, z: 208}$