197 * 5 = 985
$\snippet{name: column_multiplication, x: 197, y: 5}$
 
216 * 4 = 864
$\snippet{name: column_multiplication, x: 216, y: 4}$
 
307 * 3 − 704 : 8 = 921 − 88 = 833
$\snippet{name: column_multiplication, x: 307, y: 3}$
 
$\snippet{name: long_division, x: 704, y: 8}$
 
$\snippet{name: op_column, sign: '-', x: 921, y: 88, z: 833}$
 
65 * 8 − 535 : 5 = 520 − 107 = 413
$\snippet{name: column_multiplication, x: 65, y: 8}$
 
$\snippet{name: long_division, x: 535, y: 5}$
 
$\snippet{name: op_column, sign: '-', x: 520, y: 107, z: 413}$
 
684 : 9 + (506 − 102 * 3) = 76 + (506 − 306) = 76 + 200 = 276
$\snippet{name: column_multiplication, x: 102, y: 3}$
 
$\snippet{name: op_column, sign: '-', x: 506, y: 306, z: 200}$
 
$\snippet{name: long_division, x: 684, y: 9}$
 
$\snippet{name: op_column, sign: '+', x: 200, y: 76, z: 276}$
 
736 : 4 + (607 − 428 : 4) = 184 + (607 − 107) = 184 + 500 = 684.
$\snippet{name: long_division, x: 428, y: 4}$
 
$\snippet{name: op_column, sign: '-', x: 607, y: 107, z: 500}$
 
$\snippet{name: long_division, x: 736, y: 4}$
 
$\snippet{name: op_column, sign: '+', x: 184, y: 500, z: 684}$