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va ro ajutatima .la ex 2.Calculeaza in doua moduri ,dupa model .
astai modelu da numi dau seama la celelalte .(5+3)*2=8*2=16 5*2+3*2=10+6=16
(3+4)*9=
(6+2)*5=
7*(8+2)=
8*(5+4)=
7*(10-6)=
(8-5)*4=