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Răspuns:
216.5
Explicație pas cu pas:
21615:5 =4323
4323x5=21615
21615+4=21619
21619+31=21650
21650:100=216,5
=[(4+5×4323)+31]:100=[(4+21615)+31]:100=(21619+31):100=21650:100=216,5
Sper ca te qm ajutat!