SOLUTION: This is probably the wrong math site for my question but here it is. There is just one number: 12106 = 1 I want to come up with the number 1 by adding the numbers together. 1+2+

SOLUTION: This is probably the wrong math site for my question but here it is. There is just one number: 12106 = 1 I want to come up with the number 1 by adding the numbers together. 1+2+

Algebra.Com

Question 985201: This is probably the wrong math site for my question but here it is.
There is just one number: 12106 = 1
I want to come up with the number 1 by adding the numbers together.
1+2+1+0+6=10
Then add 10 together
1+0=1
What is the name for this math problem I've done?
Thanks~
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Look up "Excess of 9's"
or "Casting out 9's"
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