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Cum se calculeaza in doua moduri ex.
736 x 17 - 236 x 17 + 200 + 17
50 x ( 27+3)


Răspuns :

se da factor comun
17x(736-236+200)=17x700=11900
736x17-236x17+200x17=12512-4012+3400=11900
50x(27+3)=50x30=1500
50x27+50x3=1350+150=1500