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

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**firestag****Member**- Registered: 2006-01-10
- Posts: 44

lets see is you can get this (im sure you can)

How many times can you subtract 6 from 30?

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 23,297

5 times! Thats what I think!

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,664

Or once, because it ceases to be 30? (Trick question!)

Or, as many times as I like: 30-6=24, 30-6=24, 30-6=24, ... ?

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman

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**firestag****Member**- Registered: 2006-01-10
- Posts: 44

mathisfun is right its once

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**Zach****Member**- Registered: 2005-03-23
- Posts: 2,075

You lie! I can subtract 6 from 30 more than once!

30-6. 30-6. 30-6. 30-6. 30-6. 30-6. 30-6. 30-6. 30-6. 30-6. 30-6. 30-6. 30-6. 30-6. 30-6.

Etc.

Boy let me tell you what:

I bet you didn't know it, but I'm a fiddle player too.

And if you'd care to take a dare, I'll make a bet with you.

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**justlookingforthemoment****Moderator**- Registered: 2005-05-26
- Posts: 2,161

Um ... it's already been said.

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**firestag****Member**- Registered: 2006-01-10
- Posts: 44

yeah it has

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**mathsyperson****Moderator**- Registered: 2005-06-22
- Posts: 4,900

Someone said that already.

Why did the vector cross the road?

It wanted to be normal.

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**justlookingforthemoment****Moderator**- Registered: 2005-05-26
- Posts: 2,161

I said that before.

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