320 − 306 : 6 = 320 − 51 = 269;
$\snippet{name: long_division, x: 306, y: 6}$
 
$\snippet{name: op_column, sign: '-', x: 320, y: 51, z: 269}$
 
536 : (68 : 17) = 536 : 4 = 134;
$\snippet{name: long_division, x: 536, y: 4}$
 
610 − 497 : 7 + 48 = 610 − 71 + 48 = 539 + 48 = 587;
$\snippet{name: long_division, x: 497, y: 7}$
 
$\snippet{name: op_column, sign: '-', x: 610, y: 71, z: 539}$
 
$\snippet{name: op_column, sign: '+', x: 539, y: 48, z: 587}$
 
(150 − 125 : 5) * 8 = (150 − 25) * 8 = 125 * 8 = 1000;
$\snippet{name: long_division, x: 125, y: 5}$
 
$\snippet{name: column_multiplication, x: 125, y: 8}$
 
(700 − 285 : 3 * 4) : 2 = (700 − 95 * 4) : 2 = (700 − 380) : 2 = 320 : 2 = 160;
$\snippet{name: long_division, x: 285, y: 3}$
 
$\snippet{name: column_multiplication, x: 95, y: 4}$
 
$\snippet{name: op_column, sign: '-', x: 700, y: 380, z: 320}$
 
$\snippet{name: long_division, x: 320, y: 2}$
 
27 * (840 : 7 − 19 * 6) = 27 * (120 − 114) = 27 * 6 = 162.
$\snippet{name: long_division, x: 840, y: 7}$
 
$\snippet{name: column_multiplication, x: 19, y: 6}$
 
$\snippet{name: column_multiplication, x: 27, y: 6}$