(adsbygoogle = window.adsbygoogle || []).push({}); LoL I found this out accidentely. I think its pretty cool, as does my math teacher. Anways, here it is:

This works with any real number. No negatives or decimals.

Let's use 42 for example:

1. Multiply the # by itself 42x42 = 1764
2. Then subtract the original number (42) from the number; 1764-42= 1722
3. Divide that number by your original number. 1722(dividided by)42=41
4. Congrats you have successfully subtracted 1

If you are going to use this/share this, remember I came up by this.

Oh, it works with decimals and fractions now.

thank whoever invented calculators to do this for us.

LOL :p
I would have never found out how to do it that way

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Congratulations, you know how to factor :p.

No point to this. Just do it the regular way.

This has to be the most pointless thing ever. LOVE IT =D

That's pretty awesome .

This proves that you're about 12, or just in 7th grade math.

Just so everyone's aware of why this works...

Starting with a number squared minus that number:

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Factor out an x:

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Divide by x:

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