$\snippet{name: column_multiplication, x: 116, y: 6}$
 
$\snippet{name: column_multiplication, x: 492, y: 2}$
 
$\snippet{name: op_column, sign: '+', x: '436', y: '280', z: '716'}$
 
$\snippet{name: op_column, sign: '+', x: '725', y: '175', z: '900'}$
 
$\snippet{name: op_column, sign: '+', x: '90', y: '854', z: '944'}$
 
$\snippet{name: op_column, sign: '-', x: '612', y: '97', z: '515'}$
 
420 − 120 : 3 = 420 − 40 = 380
 
280 + 60 * 2 = 280 + 120 = 400