because 2 and 2 jest equal 4 B=Because it's just common sense!! Put all you fingers down....now put 2 up!! How many are up right now? 2!!! Now put 2 more up!! Now how many are up? 4!! 2 fingers plus...
In arithmetic, multiplication of one number, a, by another, b, consists of adding a to itself b times. The identity element for arithmetic multiplication is 1, meaning that a number multiplied by 1...