2,03-1,2+5,09-1,09+3,006
= 2,03 + 5,09 + 3,006 - 1,2 - 1,09 = 10,126 - 2,29 = 7,836
2,03 – 1,2 + 5,09 – 1,09 + 3,006 = 7,836