Start With the Basics:

1. 0 + a =

2. a(0) =

3. 0 - a =

4. 0/a =

5. (0)a =

6. a - 0 =

7. a/0 =



answers: 1. a, 2. 0, 3. -a, 4. 0, 5. 0, 6. a, 7. undefined