Saturday, October 24, 2015
|
 |
Senior Member
|
|
Join Date: Mar 2012
Location: Between Here and There!
Posts: 155
Thanks: 16
Thanked 61 Times in 49 Posts
|
|
Quote:
Originally Posted by economic genius
2+5:4+3=7
1+0:1+0+0=7 So ans. 100
OR
25+18=43
10+18=28
|
No please!
double the number and then subtract the digit sum!
|