An Interface With Multiple Methods

The interface IMathOps declares both Add and Subtract. Complete the MathOps class so Add returns the sum and Subtract returns the difference (a - b). Do NOT write a Main method.

For Add(7, 3) and Subtract(7, 3) the program prints each result on its own line (see Expected Output).

Expected Output:

10↵
4↵

= newline. The output ends with a newline — print one after the last line.

Hints2 available

Topics:

Interfaces

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