(100000 − 91008) : 4 = 8992 : 4 = 2248
1) $\snippet{name: op_column, sign: '-', x: '100000', y: '91008', z: '8992'}$;
2) $\snippet{name: long_division, x: 8992, y: 4}$.
 
(200000 − 160095) : 5 = 39905 : 5 = 7981
1) $\snippet{name: op_column, sign: '-', x: '200000', y: '160095', z: '39905'}$;
2) $\snippet{name: long_division, x: 39905, y: 5}$.
 
6789 + (1010 − 803) * 940 = 6789 + 207 * 940 = 6789 + 194580 = 201369
1) $\snippet{name: op_column, sign: '-', x: '1010', y: '803', z: '207'}$;
2) $\snippet{name: column_multiplication, x: 207, y: 9440}$;
3) $\snippet{name: op_column, sign: '+', x: '6789', y: '194580', z: '201369'}$.
 
9010 − (8316 + 864) : 510 = 9010 − 90180 : 510 = 9010 − 18 = 8992
1) $\snippet{name: op_column, sign: '+', x: '8316', y: '864', z: '90180'}$;
2) $\snippet{name: long_division, x: 90180, y: 510}$;
3) $\snippet{name: op_column, sign: '-', x: '9010', y: '18', z: '8992'}$.

(600000 − 599809) * 307 = 191 * 307 = 58637
1) $\snippet{name: op_column, sign: '-', x: '600000', y: '599809', z: '191}$;
2) $\snippet{name: column_multiplication, x: 191, y: 307}$.
 
(601010 − 600824) * 540 = 186 * 540 = 100440
1) $\snippet{name: op_column, sign: '-', x: '601010', y: '600824', z: '540}$;
2) $\snippet{name: column_multiplication, x: 186, y: 5450}$.
 
2000 − 500 * 4 : 2 + 8 * 50 = 2000 − 2000 : 2 + 400 = 2000 − 1000 + 400 = 1000 + 400 = 1400
 
5010 − (3020 − 180 : 9 * 6) = 5010 − (3020 − 20 * 6) = 5010 − (3020 − 120) = 5010 − 2900 = 2110