public float Subtraction(CalculatorServiceParameter value)
 {
     return value.Parameter1 - value.Parameter2;
 }
 public float Division(CalculatorServiceParameter value)
 {
     return value.Parameter1 / value.Parameter2;
 }
 public float Multiplication(CalculatorServiceParameter value)
 {
     return value.Parameter1 * value.Parameter2;
 }
 public float Adding(CalculatorServiceParameter value)
 {
     return value.Parameter1 + value.Parameter2;
 }