calculator.rb

#CALCULATOR
def calc
    puts "Hello there!! I have built a simple calculator: "
    puts "You are required to give me two numbers and an arithmetic operation"
    puts "Enter your first number: "
    number1 = gets.chomp()
    puts "Enter a second number: "
    number2 = gets.chomp()
    puts "What do you want to do with the two numbers?"
    puts "A. ADD"
    puts "B. SUBTRACT"
    puts "C. MULTIPLY"
    puts "D. DIVIDE"
    operation = gets.chomp()
    if operation == "A"
        add = number1.to_i + number2.to_i
        puts add
    elsif operation == "B"
        subt = number1.to_i - number2.to_i
        puts subt
    elsif operation == "C"
        multi = number1.to_i * number2.to_i
        puts multi
    elsif operation == "D"
        divide = number1.to_i / number2.to_i
        puts divide
    else
        puts "Cannot perform the arithmetic operation"
    end
end

calc