public IActionResult Addition(CalcModel newCalcModel)
 {
     try
     {
         decimal result = newCalcModel.Num1 + newCalcModel.Num2;
         newCalcModel.Result   = result;
         newCalcModel.Operacao = "Adição";
         newCalcModel.Data     = DateTime.Now;
         _calcRepository.Add(newCalcModel);
         return(RedirectToAction("List"));
     }
     catch
     {
         return(View());
     }
 }