Fundamentals of Maths – Unit Place Digit Concept

☑ The student will learn to find our Unit digit of any exponentioal in the matter of seconds.

☑ How we can find out whether a number is divisible by 4 or not

☑ Saving time in class exams, competitive exams and olympiads

☑ Making categories of digits in order to make the calculations easier.

Finding a Unit Place Digit is a very frequently asked question in schools, competitive exams, and also in olympiads. There are total 10 digits i.e. 0,1,2,3,4,5,6,7,8, and 9. All these 10 digits have a different method to reach the Unipt place value. In this course, I have made an earnest attempt to make the things as simple as possible. I have divided all the 10 digits into four different categories. While doing this, I have clubbed together those digits which have a common method to reach the solution. I have tried my best to explain the theory part in a way that concepts becomes simple to understand to the students.

In fact, out of ten digits, four digits i.e. 0, 1, 5, and 6 need absolutely no calculation to arrive at the requisite answer. This category is the simplest one to handle and easiest to understand. The second category containing digits 4 and 9, also, doesn’t require much calculation. The only digits that require a little more calculation are 3, 7, 2, and 8. Consequently, questions are framed only out of these four digits which are generally asked in various exams. Keeping this fact in view, I have thrown maximum focus on this category of the course. Due attention has been given to problem-solving so that the students get a clear picture of the entire concept.