Long ago, after learning how to add two numbers, Shakib came to know about multiplication. Multiplication is the process of repeated addition. When you want to add the number 5 for 3 times, the result will be 5 + 5 + 5 = 15. Using multiplication, we can calculate the same result easily, 5 * 3 becomes 15.
This is a companion discussion topic for the original entry at https://toph.co/p/elementary-arithmetic---2