This book could have been based on the syllabus of any book. Intentionally the book is based on the syllabus of text books in India, the country where I am residing now. Therefore I have tried to keep the syllabus in sync with the prescribed text books. The examples and illustrations overlap to the maximum extent to the text books. The flow of content is also replica of the book. The questions are solved from prescribed text book. My books are divided into six parts. Parts 1 to 5 are core mathematics concepts and part 6 is application of programming languages to aid the understanding of mathematics. My intention is to build thinking ability in the students at young age. This book is having no intention of replacing the council prescribed text books. But rather this book should be used as complementary content. To parents, I make no promise that their kids will score better in the exams by referring my books. Yes I would be contributing to their thinking abilities in little way possible. Though book is primarily meant to be the complementary to the NCERT text books, in general any International students can get benefitted. This book should also serve as reference book for any one who wants to revise their fundamentals of mathematics. There are totally 6 parts. This is Part 1