346 + 458 = 804
$\snippet{name: op_column, sign: '+', x: 346, y: 458, z: 804}$
 
157 + 484 = 641
$\snippet{name: op_column, sign: '+', x: 157, y: 484, z: 641}$
 
832 − 456 = 376
$\snippet{name: op_column, sign: '-', x: 832, y: 456, z: 376}$
 
621 − 241 = 380
$\snippet{name: op_column, sign: '-', x: 621, y: 241, z: 380}$
 
503 + 204 = 707
$\snippet{name: op_column, sign: '+', x: 503, y: 204, z: 707}$
 
308 + 106 = 414
$\snippet{name: op_column, sign: '+', x: 308, y: 106, z: 414}$
 
603 − 28 = 575
$\snippet{name: op_column, sign: '-', x: 603, y: 28, z: 575}$
 
204 − 39 = 165
$\snippet{name: op_column, sign: '-', x: 204, y: 39, z: 165}$