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exerciții :
36:9+3×[50+3×(400:8-98:2)]


Răspuns :

4+3×[50+3×(50-49)]=

4+3×(50+3×1)=

4+3×150=

4+450=500

36:9+3x[50+3x(400:8-98:2)]
36:9+3x[50+3x(50-49)]
36:9+3x[50+3x1]
36:9+3x[50+3]
36:9+3x53
4+159
203

sper ca te-am ajutat!