2,31 + 15,7 = 18,01
$\snippet{name: op_column, sign: '+', x: '2.31', y: '15.70', z: '18.01'}$

0,81 + 0,092 = 0,902
$\snippet{name: op_column, sign: '+', x: '0.810', y: '0.092', z: '0.902'}$

4,327 − 2,05 = 2,277
$\snippet{name: op_column, sign: '-', x: '4.327', y: '2.050', z: '2.277'}$

45,8 − 6,75 = 39,05
$\snippet{name: op_column, sign: '-', x: '45.80', y: '6.75', z: '39.05'}$

15,6 + 0,671 = 16,271
$\snippet{name: op_column, sign: '+', x: '15.600', y: '0.671', z: '16.271'}$

12,3 − 4,548 = 7,752
$\snippet{name: op_column, sign: '-', x: '12.300', y: '4.548', z: '7.752'}$