Define four methods which correspond to the four basic arithmetic operations: add subtract multiply divide They should accept either integers or floating point numbers as input. divide should perform floating point division. For example, add(10,2) # => 12 subtract(10,2) # => 8 multiply(10,2) # => 20 divide(10,2) # => 5.0 (*not* 5)

Defining basic arithmetical methods

def add(num1, num2)
  num1 + num2
end

def subtract(num1, num2)
  num1 - num2
end

def multiply(num1, num2)
  num1 * num2
end

def divide(num1, num2)
  num1 / num2
end

add(10,2)     
subtract(10,2) 
multiply(10,2) 
divide(10,2)