Ex2_Lesson21.py

def add (a,b):
    print "ADDING %d + %d" % (a, b)
    return a + b

def subtract (a, b):
    print "SUBTRACTING %d - %d" % (a, b)
    return a-b

def multiply (a, b):
    print "MULTIPLYING %d * %d" % (a, b)
    return a*b

def divide (a, b):
    print "DIVIDING %d / %d" % (a,b)
    return a/b

print "Let's do some math with just functions!"

age = add (30, 5)
height = subtract (78, 4)
weight = multiply (90, 2)
iq = divide (100, 2)

print "Age: %d, Height: %d, Weight %d, IQ %d" %(age, height, weight, iq)

# A Puzzle for the extra credit, type it anyway.
print "Here is a puzzle."

what = add(age, subtract(height, multiply(weight, divide(iq, 2))))

print "That becomes: ", what, "Can you do it by hand?"