$\snippet{name: op_column, sign: '+', x: '345', y: '559', z: '904 '}$
 
$\snippet{name: op_column, sign: '-', x: '716', y: '127', z: '589 '}$
 
$\snippet{name: op_column, sign: '-', x: '805', y: '345', z: '460 '}$
 
$\snippet{name: long_division, x: 957, y: 3}$
 
$\snippet{name: op_column, sign: 'x', x: '214', y: '4', z: '856 '}$
 
$\snippet{name: op_column, sign: 'x', x: '329', y: '3', z: '987 '}$
 
$\snippet{name: op_column, sign: 'x', x: '409', y: '2', z: '818 '}$