Răspunsuri

2014-04-05T11:26:39+03:00
A-(149+356)=243     a-505=243   a=505+243     a=748 ;      a+(229-145)=629      a+84=629      a=629-84     a=545  ;     a-(373-199)=156   a- 174=156   a=174+156   a=330
si proba?
748-(149+356)=243 545+(229-145)=629 330-(373-199)=156
ASTAB E PROBA
2014-04-05T12:20:06+03:00