Useful for School students, teachers, and professionals and a must for those appearing for competitive exams like UPSC, MBA, MCA, GMAT, GRE, CSAT, etc. “After

Discover the Mental Math Secrets to Become a Human Calculator! Schools taught you a way to do math that works when you have a pen & paper. But the same methods,

Did you know that it's easier to add and subtract from left to right, rather than the other way round? And that you can be taught to square a three-digit number

Looks at how numbers actually work, and teaches addition, subtraction, multiplication, and division in a new way that makes everyday math simple to understand

This workbook, along with the separately-sold "Answer Guide," will introduce you to all the basic arithmetic facts using The Human Calculator Matrix. Discover a