Here is a list of errata that have crept into the book due to one reason or the other. I'm sorry, and I hope this errata sheet will help you learn from the book without too many problems.
Here is the errata (Last updated October 9, 2010):
Errata for Get Smart! Maths Concepts, by Gaurav Bhatnagar
Errata for Get Smart! Maths Concepts, by Gaurav Bhatnagar
If you find more errors in the book that are not mentioned in the errata list, please do leave a comment on this site.