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#1 Re: Help Me ! » What is the name of this? » 2014-03-12 04:02:41

heinz

Thank you, bobbym.

#2 Help Me ! » What is the name of this? » 2014-03-12 03:41:49

heinz
Replies: 3

Hello.

I have a question related to this:

18 => 1 + 8 = 9
25 => 2 + 5 = 7
95 => 9 + 5 = 14 => 1 + 4 = 5
19 => 1 + 9 = 10 => 1 + 0 = 1

The number transformation that's been used here, how is it called? Does it have any special name in mathematical vocabulary?

Thank you.

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