1. Ask the user for the first number, the second number, and the operation (+, -, *, or /). Store each of them in variables. 2. Using conditionals, depending on what the user entered, have the calculator say the answer! Challenge: Add "remainder" as an operation option. For example, the remainder when 10 is divided by 3 is 1. Challenge #2: Add exponent (^) as operation option. For example, 2^3 = 8.