(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.

I didnt actually know that.

I would rather just do it the simple way though :carling:

Thats cool, never knew it, but yea why do that when you can do the simple way. xD

Thats interesting :O
Me: Cool sum for moneys?
Teacher: zomg how much?
Me: 1,000,000,000,000
Teacher: wtfbbq is dat a numbor!?
Me: oj, all dat in pennies pl0x?
Teacher: yay sum

Lol at above

Lets test this shit

1. Multiply the # by itself 7x7 = 50 :carling:
2. Then subtract the original number (7) from the number; 50-7= 43
3. Divide that number by your original number. 43(dividided by)7=6.3 WTF YUNO WORK?
4. Congrats you have successfully subtracted .7!

i'd rather not do math out of school =D

I actually find this a lot easier. Thank you!

I'm so gonna do that on my maths exam but it's a shame I'm not in year 1 anymore , oh well, better start teaching year 1 that formula