Quantcast

Maths Trick

UKworkshop.co.uk

Help Support UKworkshop.co.uk:

llangatwgnedd

Established Member
Joined
17 Sep 2002
Messages
1,080
Reaction score
1
Location
Castell Nedd, De Cymru
1. Grab a calculator. (you won't be able to do this one in your
head)
2. Key in the first three digits of your phone number (NOT the
area code)
3. Multiply by 80
4. Add 1
5. Multiply by 250
6. Add the last 4 digits of your phone number
7. Add the last 4 digits of your phone number again.
8. Subtract 250
9. Divide number by 2

Hopefully, you will get your own telephone number!

Cheers
 

tombo

Established Member
Joined
26 Feb 2005
Messages
381
Reaction score
0
Location
Wirral, UK
smoke and mirrors...basically it multiplies the first 3 digits by 10000 (80 * 250 / 2) so as to shift the digits to the left 4 places and then adds the last 4 digits.
 

SketchUp Guru

Established Member
Joined
12 Apr 2005
Messages
3,152
Reaction score
0
Location
Rochester, MN USA
How about this then?

Pick a number of 2, 3 or 4 digits.

Add 3 to that number and write it down.

Also subtract 3 from that number and write it down.

Multiply these two new numbers together.

Add 9 to that product.

Now calculate the square root of the result from the last step.
 
Top