Articles, tagged with "addition and subtraction", page 1

Today due to advance technology the living standards of a normal individual has been changed beyond their imagination. Things that are common for us nowadays were just like a dream a few years ago. Most of the tasks that were performed by normal individua...

Maybe you aren't satisfied with your computational skills. If you want to improve them, check the quality of your simple mental computations first. I keep in view simple mental addition and subtraction within the limits of 20, simple mental multiplication...