100520 − 470 * 50 + 13980 = 100520 − 23500 + 13980 = 77020 + 13980 = 91000
1) $\snippet{name: op_column, sign: '×', x: '470  ', y: '50  ', z: '23500 '}$;
2) $\snippet{name: op_column, sign: '-', x: '100520', y: '23500', z: '77020'}$;
3) $\snippet{name: op_column, sign: '+', x: '77020', y: '13980', z: '91000'}$.
 
14110 + 801000 : 900 − 7604 = 14110 + 890 − 7604 = 15000 − 7604 = 7396
1) $\snippet{name: long_division, x: 801000, y: 900}$;
2) $\snippet{name: op_column, sign: '+', x: '14110', y: '890', z: '15000'}$;
3) $\snippet{name: op_column, sign: '-', x: '15000', y: '7604', z: '7396'}$.
 
734600 : 50 + 454 * 40 = 14692 + 18160 = 32852
1) $\snippet{name: long_division, x: 734600, y: 50}$;
2) $\snippet{name: op_column, sign: '×', x: '454  ', y: '40', z: '18160 '}$;
3) $\snippet{name: op_column, sign: '+', x: '14692', y: '18160', z: '32852'}$.
 
(560 − 12240 : 30) + 145 = (560 − 408) + 145 = 152 + 145 = 297
1) $\snippet{name: long_division, x: 12240, y: 30}$;
2) $\snippet{name: op_column, sign: '-', x: '560', y: '408', z: '152'}$;
3) $\snippet{name: op_column, sign: '+', x: '152', y: '145', z: '297'}$.
 
400000 − 867 * 400 = 400000 − 346800 = 53200
1) $\snippet{name: op_column, sign: '×', x: '867    ', y: '400', z: '346800 '}$;
2) $\snippet{name: op_column, sign: '-', x: '400000', y: '346800', z: '53200'}$.
 
9805 + 146510 : 70 = 9805 + 2093 = 11898
1) $\snippet{name: long_division, x: 146510, y: 70}$;
2) $\snippet{name: op_column, sign: '+', x: '9805', y: '2093', z: '11898'}$.
 
8213 * 30 − 12240 : 30 = 246390 − 408 = 245982
1) $\snippet{name: op_column, sign: '×', x: '8213  ', y: '30', z: '246390 '}$;
2) $\snippet{name: long_division, x: 12240, y: 30}$;
3) $\snippet{name: op_column, sign: '-', x: '246390', y: '408', z: '245982'}$.
 
11140 : (2076 − 2056) = 11140 : 20 = 557
1) 2076 − 2056 = 20;
2) $\snippet{name: long_division, x: 11140, y: 20}$.