Question

State a conclusion that seems reasonable.

6 + 0 = 6, 8 + 0 = 8, 9 + 0 = 9, 100 + 0 = 100.

Conclusion:

Answer 1

When you add 0 to any number it will neither increase or decrease the number.
Hope that helps :)

Answer 2

When you add zero to any number the answer will be the same numbe you started with. 
Zero is the additive identity.