jods

What fun we are having tonight.

Using all the numbers and BODMAS / * + - and Squares etc
make as many numbers from 1 to 20 as you can.

The numbers to use are 2, 2, 2, 2, 2

Before my head imploded I got this far

01 = ((2/2)+(2/2)/2)
02 = ((2*2)/(2*2))*2
03 = (2/2)+2*(2/2)
04 = (2+2+2+2+)/2
05 = (2+2+2)-2/2
06 = (2+2+2)*(2/2)
07 = (2+2+2)+(2/2)
08 = ((2*2)/2)*2*2
09 = (((2*2)to the power of 2))+2)/2
10 = (2+2+2+2+2)
11 = (((2/2)+2)to the power of 2)+2
12 = (2*2)to the power of 2 - (2+2)

Arrrgh my head is hurting
NE maths boffins out there who can stop my head exploding ?


[Edited by jods - 10/8/2002 9:42:13 PM]

Squizz

Posted on behalf of my missus.

"I've got it if we are allowed to round up to the nearest whole number.....

[(2+2) to the power of 2] + 2 + cos2 = 18.9999 ie 19"

Apparently!

[Edited by Squizz - 10/9/2002 2:06:59 PM]

naturbo2000

9 is easier as (2 * 2 * 2) + (2 / 2)
12 is (2 * 2 * 2) + (2 * 2)

naturbo2000

14 must be ((2 * 2 * 2 *2) - 2)
15 is (((2 * 2) ^ 2) - (2 / 2)))
16 is ((2 * 2) ^ 2) + 2 - 2
17 is (((2 * 2) ^ 2) + (2 / 2)))
18 is ((2 * 2 * 2 * 2) + 2)
20 is (((2 * 2) ^ 2) + 2 + 2)

just 13 and 19 to go

naturbo2000

^ meaning "to the power of"

jods

cheers guys - so just 13 and 19 to crack then !!

naturbo2000

don't reckon they can be done with just those numbers (unless square doesn't use a 2)

dsmith

I guess this is cheating....

13 = (22 + 2*2)/2
19 = 22 - 2 - 2/2

Deano

jods

think that the square uses a 2 - should we call in Carol V ??

dsmith

Ok how about


int((inv-tan(2) / (2*2) ) - (2*2)) = 13

Thats 2 grads btw

Dr Hu

Kid's homework.....WTF

I aint never having kids to subject to this **** every nite.....

alcazar

iTrader: (2)

1 can be had from 2^(2-2), ie: 2 to the power 0, which is 1.
This can be put in elsewhere to get numbers like 13 and 19.
Alcazar
(who actually used his degree in maths and physics at one time......many moons ago)
:

DavidRB

Yeah, but that uses too many twos. 2/2 also equals 1.

Still can't get that n-n-n-nineteen...

dsmith

There are only 5 "2"s in total.

Show us how.....

Avril

I think 19 is ((2*2*2)*2)-(2/2) ???

Hope this helps...

dsmith

Unfortunately thats 15 (16-1) and uses 6 "2"s

Deano

Avril

oh ****.

Jay m A

iTrader: (2)

((2^ * 2^)+ 2^) - 2/2

Do I win a prize?

Justin

Jay m A

iTrader: (2)

oh hang on, ^ means squared, which I quess means too many 2's

carl

But you're only allowed to use BODMAS (BIDMAS in my day). Brackets, indices, division, multiplication, addition and subtraction. Cosines aren't any of those.

dsmith

Depends how flexible you are with your "etc."

Deano

p.s. good effort for the 19

jods

Cheers Squizz. If I find a calculator I'll test that one out later

Cannot imagine what is in store for me when the kid gets out of primary school to 1st year secondary ? Nuclear Physics, Quantam Mechanics, space time theory.

Maybe by second year she'll have to do all this in binary in Japanese whilst levitating - All perfectly reasonable to expect of a 11 / 12 year old child Mr Blur !!!!

jods

Squizz - That's beautiful is that 18.999390827019095730006243440044

naturbo2000

I guess it's another number between 1 and 20

No-one said they had to be integers

DavidLewis

19= ((2/.2)x2)-(2/2)
13= (2/.2) + 2 + (2/2)

Now that deserves a medal!!!!!

jods

She got top marks