1) 100 − 42 = 58
$\snippet{name: op_column, sign: '-', x: '100', y: '42', z: '58 '}$
2) 270 − 130 = 140
$\snippet{name: op_column, sign: '-', x: '270', y: '130', z: '140 '}$
3) 109 + 56 = 165
$\snippet{name: op_column, sign: '+', x: '109', y: '56', z: '165 '}$
4) 75 + 325 = 400
$\snippet{name: op_column, sign: '+', x: '75', y: '325', z: '400 '}$
5) 150 − 98 = 52
$\snippet{name: op_column, sign: '-', x: '150', y: '98', z: '52 '}$
6) 1207 + 1023 = 2230
$\snippet{name: op_column, sign: '+', x: '1207', y: '1023', z: '2230 '}$
Ответ: