I am not sure what you mean by trick, but some are harder than others. For example say the perimeter of a square is 8, what is the area. Answer 4
Here is a harder one, the perimeter of a rectangle is 20, what is the area.
Well there is more than one answer. That kind of makes it a 'trick" problem.
The sides could be 2 and 8 we perimeter is 16+4=20
Or 3x2=6+ 7x2=14 so the perimeter of a 3x7 rectangle is also 20.
The area of the 2x8 rectangle is 16
the area of the 3x7 is 21.
area of a circle (A), radius of circle(R): A=R^2
A=l*w
give me an example of a value in a math problem
1(1-1)=1
length times width
you multiple the base by the height
3x-12=-9x ------------- x=1
math and arithmetic
There are a lot of little tricks, but the best one of all is this: During the whole school year before the Olympiad, do all of your homework, and learn the math. That way, no matter what problem they throw at you in the Olympiad, you'll be able to solve it, and you won't need any other tricks.
Please give a sample problem.
By solving a math problem
Yes, why not?