SOLUTION: 3333333334 squared equals a 20 digit number. What is the sum of the digits? I have to find a pattern and answer the question. I squared 4 which means 16 and then what do I do

Question 44881: 3333333334 squared equals a 20 digit number. What is the sum of the digits?
I have to find a pattern and answer the question.
I squared 4 which means 16 and then what do I do with the 9 3's
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
You're given a 10-digit number to square

this is just
The last 2 terms are 6666666666 +1
The digits add up to 61
what about ?
with my calculator,

looking ahead,

The digits add up to
answer
unless I made a mistake
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