Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#1 Re: Introductions » Hello » 2008-01-31 18:23:32

Hello Phong! I hope you like it here big_smile

#2 Re: Introductions » Hi I joined today » 2008-01-31 18:22:13

Hello! I hope you like it here, and I'm glad you have discovered the wonders of maths!

#3 Re: Introductions » Hallo from Russia! » 2008-01-28 18:25:12

Hello! I'm Katie and I'm sure you'll like it here

#5 Re: This is Cool » check this out » 2007-12-18 20:05:33

Now, that website's really cool

#6 Re: Introductions » Hello! » 2007-12-13 18:23:55

Welcome welcome welcome big_smile
My name's Katie - hi!

#8 Re: Introductions » Hiya! » 2007-12-11 03:53:43

Thank you big_smile
I already like it a lot here

#9 Re: Dark Discussions at Cafe Infinity » Q20 » 2007-12-10 04:53:40

This isn't a Q20, but what are the 'A continents'? I've never heard that expression used before.

#10 Re: Puzzles and Games » Riddles » 2007-12-07 19:49:40

Neither, Identity!
This one is quite though, keep on trying.

#11 Re: Introductions » Ooops... » 2007-12-07 02:41:47

Yeah, good luck with your oxford interview!

#12 Re: Puzzles and Games » Riddles » 2007-12-07 01:26:51

And another from me:
It bleeds without a cut.
It looses you over the Atlantic, and gains you on the way back.
What is it?

The riddle works better spoken, by the way.

#13 Re: Puzzles and Games » Riddles » 2007-12-06 20:52:14

So mathsyperson, that's not right
But well done Jane, that is corrrect!

Ok, here's my third:
A man lives on the top floor of an 100-floor block of flats.
Every morning, he takes the lift down down-the-stairs and goes to work.
Then, when he returns he gets the lift up to floor 60 and takes the stairs up the rest of the way, except for when its raining.
Why would he do this?

#15 Re: Puzzles and Games » Riddles » 2007-12-06 10:03:37

Well, you're better than my friend! Correct big_smile

I have another one:
A man met two girls at a party and said to them, "You look so alike, you must be twins!"
And they said: "We are born on the same day, of the same month, of the same year, by the same parents, but we are not twins."
How is this possible?

#16 Puzzles and Games » Riddles » 2007-12-06 09:43:47

Replies: 12

Right, I have a riddle for you:

You are standing in a room with three doors.
Through the first door are three men with knives
Through the second door are three men with guns
Through the third door are three lions than haven't eaten three years.
Which door should you go through in order to survive?

It took me seconds by my friend couldn't get it. Can you? smile

#18 Re: This is Cool » 0.9999....(recurring) = 1? » 2007-12-06 09:21:22

I spent most of my maths lesson last week proving this to my friend, using the 0.333... = 1/3 and 3/3 = 0.9999999... way and eventually got her to believe me.
I like the other proofs too though, and I haven't seen most of them before. smile

#19 Introductions » Hiya! » 2007-12-06 09:08:06

Replies: 4

Hello everybody big_smile My name's Katie and I just joined. As you probably guessed I really like maths. I've been looking around this site for ages so I thought I'd join up.

So um... hello.

I'm doing GCSE maths at the moment, by the way. Almost forgot!

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