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calculeaza..
(9\2 + 5\2+1)-(1\4+3\4+5)=


Răspuns :

(4.5+2.5+1)-(0.25+0.75+5)=
(8+1)-(1-5)=
8-6=2
( 4,5 + 2,5 + 1)-(0,25+0,75+5) =
8-6=
2