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Handout 3 Math challenge IC Assignment

 
 
Picture of Christina Peng
Handout 3 Math challenge IC Assignment
by Christina Peng - Wednesday, March 14, 2018, 7:34 PM
 

How do you do 3.28?  I tried to find a pattern with the unit digits of the sequence and realized there's no sequence (or it is too long), and I don't know what else to try. 



 
Picture of David Reynoso
Re: Handout 3 Math challenge IC Assignment
by David Reynoso - Thursday, March 15, 2018, 10:27 AM
 

For this problem looking for a pattern in the units digits would help if we were dividing by $10$, as the remainder of a number when we divide it by $10$ is precisely its units digit. 

Try doing the same but looking at the remainders when you divide by $11$, that is, if you find a number in the sequence that is $11$ or more, write its remainder when dividing by $11$ and use that as the number in the sequence. So, instead of your sequence looking like $1,1,3,5,8,13,21\dots$, it would look like $1,1,2,3,5,8,2,10,\dots$

Picture of Christina Peng
Re: Handout 3 Math challenge IC Assignment
by Christina Peng - Tuesday, March 20, 2018, 11:07 PM
 

Thank you!