Adicionando definição de escopo aos benas.

Calculator-Web/src/main/java/br/ufrn/imd/web2/calculator/view/CalculatorManagedBean.java

@@ -5,7 +5,15 @@ import javax.inject.Named;
 
 import br.ufrn.imd.web2.calculator.bean.NoInterfaceViewCalculatorBean;
 
+//Importing scopes
+import javax.enterprise.context.RequestScoped;
+import javax.enterprise.context.SessionScoped;
+import javax.enterprise.context.ApplicationScoped;
+
 @Named
+@RequestScoped
+//@SessionScoped
+//@ApplicationScoped
 public class CalculatorManagedBean {
 	private int numero1, numero2, resultado;