public float Multiply(float number1, float number2)
 {
     return(FloatCalculator.Instance().Multiply(number1, number2));
 }
 public float Substract(float number1, float number2)
 {
     return(FloatCalculator.Instance().Subtract(number1, number2));
 }
 public float Divide(float number1, float number2)
 {
     return(FloatCalculator.Instance().Divide(number1, number2));
 }
 public float Add(float number1, float number2)
 {
     return(FloatCalculator.Instance().Add(number1, number2));
 }