Question

6 Află rezultatul: dacă puteti si 7 dacă nu nu ma supar​

Answer 1

Răspuns:

7.

a.198-[29×(56:2-50:2)-(5×11-24)]:[(86:2+47):2-(18+23)]=

=198-[29×(28-25)-(55-24)]:[(43+47):2-41]=

=198-(29×3-31):(90:2-41)=

=198-(87-31):(45-41)=

=198-56:4=

=198-14=

=184

b. [257+(64-33)]:[(37+27):(44-42)-(52-37)×(70:2-33)]=

=(257+31):[64:2-15×(35-33)]=

=288:(64:2-15×2)=

=288:(32-30)=

=288:2=

=144

c. 265×13-[(35×42-23×51)-64×2]×30-(72×29+12×15×3)=

=265×13-[(1470-1173)-64×2]×30-(2088+180×3)=

=265×13-(297-64×2)×30-(2088+540)=

=265×13-(297-128)×30-2628=

=265×13-169×30-2628=

=3445-5070-2628=

=3445-2442=

=1003