21 : (63 : (207 − 198)) = 3
468 + 254 − 5 * (28 + 106) = 52
Вычисления:
21 : (63 : (207 − 198)) = 3
1)
$\snippet{name: op_column, sign: '-', x: '207', y: '198', z: '9'}$
2) 63 : 9 = 7
3) 21 : 7 = 3
468 + 254 − 5 * (28 + 106) = 52
1)
$\snippet{name: op_column, sign: '+', x: '28', y: '106', z: '134'}$
2) 5 * 134 = 134 * 5 = 670

3)
$\snippet{name: op_column, sign: '+', x: '468', y: '254', z: '722'}$
4)
$\snippet{name: op_column, sign: '-', x: '722', y: '670', z: '52'}$