8 - 8 = 8. How is this possible? Allow me to explain.

There are 2 people. Person2 requests 8 dots (numbers). You give Person2 8 dots. 8 - 8 cannot equal 0, because the dots have not simply disappeared, they are now in the posession of Person2. 8 minus 8 equals 0 is just what they want you to beleive.

- A totally legit certified teacher.