547 + 94 = 641
$\snippet{name: op_column, sign: '+', x: '547', y: '94', z: '641'}$
Проверка:
1) 641 − 547 = 94
$\snippet{name: op_column, sign: '-', x: '641', y: '547', z: '94'}$
2) 641 − 94 = 547
$\snippet{name: op_column, sign: '-', x: '641', y: '94', z: '547'}$
 
802 − 356 = 446
$\snippet{name: op_column, sign: '-', x: '802', y: '356', z: '446'}$
Проверка:
1) 802 − 446 = 356
$\snippet{name: op_column, sign: '-', x: '802', y: '446', z: '356'}$
2) 446 + 356 = 802
$\snippet{name: op_column, sign: '+', x: '446', y: '356', z: '802'}$
 
914 − 838 = 76
$\snippet{name: op_column, sign: '-', x: '914', y: '838', z: '76'}$
Проверка:
1) 914 − 76 = 838
$\snippet{name: op_column, sign: '-', x: '914', y: '76', z: '838'}$
2) 838 + 76 = 914
$\snippet{name: op_column, sign: '+', x: '838', y: '76', z: '914'}$