Tag Archives: Special Multiplication

Multiplying a number by 15

Posted on September 9, 2019 by Praveenkumar K

General rule: Let us assume the number to be ABC, then thumb rule says, Step 1: Keep on adding the half of left most digit and write the number on the right of the digit till all numbers are covered. … Continue reading →

Posted in Bank Exam Preparation, Mathematics, Mathmagic, Speed Mathematics | Tagged , , , , | Comments Off on Multiplying a number by 15