Be a Human Calculator (Mere Observation - No Magic): (All Calculation tricks at a single place for students (10-18) and the aspirants of GMAT, GRE, SAT, Vedic Math, Speed Math and Mental Math ) by Rajesh Sarswat
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BE A HUMAN CALCULATOR
Can you find the Cube Root of a number like 46,656 in less than 5 seconds?
Can you find the Square Root of a number like 1296 in less than 5 seconds?
Can you find the Square of 75, 85, 95 in two seconds?
Can you Add/Multiply /Subtract/Divide numbers at a faster pace?
Can you check the divisibility of any number by any other number?
Can you find the percentage of a number at a rapid pace?
Can you factorize an algebraic expression mentally?
Can you solve algebraic equations at a fast pace and much more?
If the answer to any of the above questions is No,
Then, this book is for you.
The book will improve the calculation speed of all the students by at least two times by practicing and understanding observation based tricks explained in the book.
A useful book for School students across the globe (Grade VI to Grade Xii) and a must-have for students appearing for competitive exams like GMAT, GRE, CSAT, SSC, UPSC, MBA, MCA. After going through the book, solving arithmetic problems of addition, subtraction, multiplication, division, square, square root, cube, cube root, and algebraic problems on the division, factorization, solving equations, would be fun.
About the author
Rajesh Sarswat is a Post Graduate in Computer Science. He has availed voluntary retirement from a senior capacity under the Indian Government to pursue his passion for writing and teaching. Despite the demanding bureaucratic obligations, he pursued his interest in Mathematics and conducted extensive research on various techniques and concepts of quick mathematics, silly mistakes, and memory techniques. His books result from his research in these fields for the past 25 years. Along with research and writing, he has qualified in thirteen all India level competitive examinations, some of which are most gruesome.
Besides writing on Mathematics, Rajesh has a penchant for teaching Mathematics and is a favorite teacher for his creative and entertaining ways of presenting the topic. His books " Be a Human Calculator," Avoid Silly Mistakes in Mathematic" and "How to Memorize Formulas in Mathematics" are popular among students because of the various innovative techniques and methods explained in these books.
His latest book is "How to Memorize Formulas in Mathematics Book-2 Trigonometry."
Rajesh lives in Ghaziabad, Uttar Pradesh, India, with his wife and son.