$1200 \overset{1}{:} 3 \overset{2}{:} 10 = 400 : 10 = 40$
$1200 \overset{1}{:} 10 \overset{2}{:} 3 = 120 : 3 = 40$

$856 \overset{1}{:} 8 \overset{2}{*} 100 = 107 * 100 = 10700$
$856 \overset{1}{*} 100 \overset{2}{:} 8 = 85600 : 8 = 10700$

Вычисления:
$\snippet{name: long_division, x: 856, y: 8}$
 
$\snippet{name: long_division, x: 85600, y: 8}$

$297 \overset{1}{-} 88 \overset{2}{+} 34 = 209 + 34 = 243$
$297 \overset{1}{+} 34 \overset{2}{-} 88 = 331 - 88 = 243$

Вычисления:
$\snippet{name: op_column, sign: '-', x: '297', y: '88', z: '209 '}$
 
$\snippet{name: op_column, sign: '+', x: '209', y: '34', z: '243 '}$
 
$\snippet{name: op_column, sign: '+', x: '397', y: '34', z: '331 '}$
 
$\snippet{name: op_column, sign: '-', x: '331', y: '88', z: '243 '}$

$235 \overset{1}{+} 97 \overset{2}{+} 49 = 332 + 49 = 381$
$235 \overset{1}{+} 49 \overset{2}{+} 97 = 284 + 97 = 381$

Вычисления:
$\snippet{name: op_column, sign: '+', x: '235', y: '97', z: '332 '}$
 
$\snippet{name: op_column, sign: '+', x: '332', y: '49', z: '381 '}$
 
$\snippet{name: op_column, sign: '+', x: '235', y: '49', z: '284 '}$
 
$\snippet{name: op_column, sign: '+', x: '284', y: '97', z: '381 '}$