Adding some more arithmetic operator examples

Python/000_basics.py

@@ -24,4 +24,31 @@ print("Your age is:", age)
 age = age + 1
 # Age is now equal to 33
 # Someone had a birthday!
-print("Happy Birthday! You are now", age, "years old!")
+print("Happy Birthday! You are now", age, "years old!")
+
+# Simple math operators can be combined for the sake of brevity.
+# These are called "compound" operators
+#   age = age + 1
+#       is the same as
+#   age += 1
+#
+#   Basic compound operators: += -= *= /= (/= is a floating point operator)
+#   (A special //= which returns integer)
+unused_age = 100
+print(f"Unused Age: {unused_age}")
+unused_age -= 1    # unused_age is now 99
+print(f"Unused Age: {unused_age}")
+unused_age += 3    # unused_age is now 102
+print(f"Unused Age: {unused_age}")
+unused_age *= 4    # unused_age is now 408
+print(f"Unused Age: {unused_age}")
+unused_age //= 2    # unused_age is now 204
+print(f"Unused Age: {unused_age}")
+
+# There is a common operator used in programming called the "modulo" or "modulus".
+# This operator is a division operator that returns the remainder after
+# the division is complete.
+unused_age %= 100
+print(f"Unused Age: {unused_age}")
+
+