$1+2-A=0$, $A=3$. 
Eleven members of the Middle School Math Club each paid the same integer amount for a guest speaker to talk about problem solving at their math club meeting. In all, they paid their guest speaker $$\overline{1A2}$$. What is the missing digit $A$ of this $3$-digit number? (2014 AMC 8 Problem, Question \#8) 

$$0$$ 
$$1$$ 
$$2$$ 
$$3$$ 
$$4$$ 