He is sooooooooooo testing my patience!

To understand my FRUSTRATION, solid examples are probably the most direct way.
These are not the entire questions, but a SMALL part of the whole part of question that he needs to answer.

Q1) 9-3y=2x, If x=0, Find y.
Him: 2 times 0 is 2 ar?-_-"

Q2) 36/4=?
Him: *thinking hard*

Q3) 3-(-3)=?
Him: 0

Q4) 18=27A
Him: *asking me back* Actually how to know which one must divide which one ar? Why sometimes is 18 divide 27, sometimes 27 divide 18?

Q5) -1/1=?
Him: *thinking, then use calculator*

Q6) 0-x=?
Him: Err....stil can simplify meh?

Q7)What is the mid point of 2.5-3.0?
Him: *writes out*
2.5 3.0
2.6 2.9
2.7 2.8
Err, then cannot d wor.

Me: What is arc?
Him: Errr...

Me: What is circle?
Him: Errr...

Hypothenus? Square root? Circumference? Sin, cos, tan? and a whole lot more...
Him: Dunno

Me: What is the meaning of 'x is proportional to cube of y?'
Him: Errr....
Me: What is proportional and what is the meaning of cube?
Him: Preo..po...tat one i duno.. Cube is...*draws out a shape cube*

And the one i would vote 'ANSWER OF THE DAY'
Q: Where is ur form 4 maths book?
A: Don' have wor.
Q: Do u know u wil b tested for form 4 maths also?
A: Is it?*dengan penuh chill*


Sometimes i find it funny but sometimes i find it really annoying.

N the worst part is i have to explain the same thing OVER AND OVER AGAIN!!

I explained to him FOUR TIMES in four consecutive days that when they ask for equation, means they want it in the form 'y=mx+c'. Also explained what is y, m, x and c.
Yet today when the question ask for an equation, he ask me how to do. And when i asked him what is equation. He said 'means just find y ar?'
ARGHHHH!!!

Why is there such a human being in this world?? Previously, i didn't particularly liked teaching a std 2 student maths cuz i didn't know how to explain why is 3x9=27 things like that. But i didn't feel frustrated at all when she didn't understand cuz she was in std 2.

But now?? FORM 5!! SPM MATHS IN 3 DAYS!!