Hello and welcome to the forum, Jenilia.

Keep your mind sharpened by trying some of the puzzles on the forum - but be careful not to read too far or you will discover the answers!

Surely you must have done it at least once.
The questions are on a little coloured booklet thingy with this logo:

Doesn't everyone in the UK do them?

Good article on it: http://en.wikipedia.org/wiki/International_Mathematical_Olympiad

Official site: http://imo.math.ca/

Can you tell us more about your entry in the contest, Jenilia?

UKMT = United Kingdom's Mathematical Torture.

It's kind of a test, but more fun because the questions are more like puzzles than questions.
You don't actually need much mathematical knowledge, you just need to think.
There are 3: Junior, Intermediate and Senior.
If I remember, Junior is for years 7-9, Intermediate for 10-11 and clever year 9's and senior for 12-13 and clever year 11's.
If you do exceptionally well in one of these, you move on to the Olympiad of that level, which is what Jenilia was talking about.

Jenilia - we are dying to hear back from you ...

"Can you tell us more about your entry in the contest, Jenilia?"
 
  Someone sent this message. Anyway this competition is for the 12 yr olds and the smarter 11 yr olds. We start our practicing at 10 yr old. We first go for the best school in the country, then the best country in the world. The question is like "Find the No. in the ones place in the sum of 1 x 3 x 5 x 7 x ... x 97 x 99=". The answer is [edited]. For this kind of question in maths olympiad level you should tell the answer in the first look.

I think the UKMT thing is the one that UK people do to find the best school in country, then we both do the same best country in world test.

What is it about a full member, novice, and the moderator. I'm eager to know.

Most of us come on about once a day, and we share puzzles and brain teasers, and even do some good mathematics.

As people have said already, just tell us what you are having trouble with (examples are useful) and we will give you SOME kind of reply (hopefully good!)

Now, that 1 x 3 x 5 x 7 x ... x 97 x 99 is intriguing

That is all multiplied, right?

Hmmm, after 10 the 1s may not change ...

Anyway the answer is 5. And I've put up a teaser in the puzzles and games section. Have a look!

Ganesh is right. Multiply anything by 5 and you get something that ends in 5 or 0. All of the numbers are odd, which means that their product will be odd, which rules out it ending in 0.