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**agoulding****Member**- Registered: 2005-05-08
- Posts: 3

i have to write an essay on doubling anybody got any key info to include? Thankyou

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**kylekatarn****Member**- Registered: 2005-07-24
- Posts: 445

doubling??

doubling a number?

x * 2?

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,685

Doubling is just adding ...

If you double zero you get ... zero

If you double a negative number you get a negative number ...

The opposite of doubling is halving ...

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

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**wcy****Member**- Registered: 2005-08-04
- Posts: 117

doubling is in fact a subset of multiplication; you just multiply by 2 each time

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**ryos****Member**- Registered: 2005-08-04
- Posts: 394

To get the number x doubled n times, use x * 2^n .

El que pega primero pega dos veces.

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