Vă rog! ! ! ! ! ! ! ! ! !
![Vă Rog class=](https://ro-static.z-dn.net/files/de7/f26e1d29fd5b876d429180b97ab6c1c3.jpg)
= 11 /2 - 1/4 + 1/4 - 1/2 = 11/2 - 1/2 = 10/2 = 5 sau,
5,5-0,25+0,25-0,5 = 5,5-0,5=5