mathematics tricks and fun

Mathematics Tricks and Fun introductory lesson of  vedic maths tutorial Hello  friends, today while launching this -new You-tube channel" Mathematics tricks and fun " I offer my obeisance to that great mathematician -The MotherNature. I am Dr Prema BSejekan, a retired medical professional I love mathematics and I  pursued the passion for it ever since my childhood. It got ignited recently, when my elder sister gifted to me a book "Lilavati by Bhaskaracharya 2". After that I started collecting books on Vedic Mathematics by several authors. Among these the book by Jagath Guru Swami Bharat i Krishna   Theertha Maharaj is really an asset to my collection, some chapters of which   I still I have to digest. Without wasting time, I will dive deep and come out with some magical pearls  for you . Now how much is (9999999999)​ 2​ don't panic the answer is  9999999998000000001 .  what is the answer for 99999999*99999 =  9...

Hello, children and and friends, today while launching this -new YouTube channel" Mathematics tricks and fun " I offer my obeissance to that great mathematician -The Mother Nature. I am Prema BSejekan, a retired medical professional I love mathematics and I pursued the passion for it ever since my childhood. It got ignited recently,when my elder sister gifted to me a book "Lilavati by  Bhaskaracharya 2".After that I started collecting books on Vedic Mathematics by several authors. Among these the book by JagathGuru Swami Bharathi Krishna Theertha Maharaj is really an asset to my collection, some chapters of which I still I have to digest.  Without wasting time, I will dive deep and come out with some magical pearls for you . Now how much is (9999999999)2 don't panic the answer is 9999999998000000001 . what is the answer for 99999999*99999 = 9999899900001 Interesting,isn't it ? There are patterns like these arising from arithmatic progression, geometric pro...

Cube roots in general - mathematics Tricks and Fun In this class we will be studying cube roots in general  I am doctor Prema B DpSejekan, mathematics tricks  and fun. in the previous class we have finished the  cube roots of exact cubes. if you have not seen that  video it  will be advisable to see that .the link is given below .  In extracting the cube root of a number, first count  the digits and convert into 3 digit groups and end  digits  even if comes as 2 or 2 digits consider as single  group. We should always recollect the cubes of unit digits. Algebraic explanation for the the cube roots is given  here and the cube root has two digits we will use  the  a plus b whole cube derivation and when 3 digits  a + b + c whole cube and its derivatives will be used  same way  for 4 a + b + c + D whole cube and its derivatives. A few examples are shown.  In finding the cube roots there a...

Cube roots of exact cubes.24 mathematics tricks and fun Hello friends today we are going to study how quickly we can derive cube roots of small to big numbers. I am Dr Prema B Sejekan .This is the 24th class of mathematics tricks and fun. Now what is a cube root? In simple words,Cube root of a number is a number which when multiplied three times,  by itself gives the number. Cube root of 8 is 2 and cube  of 2 is 8. Similarly cube root of 27 is 3 and cube of 3 is  27.    So to find the cube root quickly we should have a  working knowledge of the cubes of at least unit  digits. Now let us recollect them again.           1,. 1. 6. 216                       2. 8. 7. 343                       3. 27. 8. 512       ...

  Square roots of non-perfect square , Mathematics  Tricks and Fun 23 Hello friends,today we are going to study how to derive  the square roots of nonperfect squares. This is the 23rd class of Mathematics Tricks and Fun. I am Dr Prema B Sejekan.  In this example we have to derive the square of 52443907.This is an eight digit number. So in the answer we will have 4 digits and rest will be in decimals.Since even number take first two digits ie 52.Find a digit the square of which is near to 52 ie 7.Now put seven on quotient side and 49 placed below 52 balance 3 in front  of 4. Double of 7 ie 14 is taken as the divisor place it on the outer side and diary dividing 34 with 14 we will put 2 on quotient side and 28placed below 34 balance 6 we  will put in front of 4 to form 64.Now square of 2 is 4 ,  deduct 4 from 64 ,we will get 60 which when divided by  14 gives 4 as quotient.4×14=56.balance of 56 from 60  is 4 placed beside 3 to g...

square root tricks by vedic maths Hello friends in this 22 nd class on mathematics tricks and fun today we will learn how to find the square root  by Vedic Maths I am Dr Prema b sejekan.. Armed with straight division and Urdhwa Tiryak sutra we will quickly solve the problems easily. This is just a reminder how to do squaring using Urdhwa Tiryak sutra.when two digits square of the first digit then multiply the given two digits and double the product ,  when 3 digits twice the product of the first and third  digit added to the square of the middle digit,when four digits twice the product of the first and last digits added to  twice the product of the middle two digits. Now coming to the principles of finding the square root, First arrange into gps of two, If there is one extra single digit that will be counted as a separate gp, The number of digits in the square root will be same as the number of groups thus made. In the case of pure decimals the number...

  Straight division by Vedic maths mathematics Tricks and Fun  21 Hello friends, this is the 21st class on mathematics  tricks and fun.I am Dr Prema B Sejekan.Division by  Vedic maths is easy using mostly single unit digits . so one need to know multiplication table up to 9 only  and mostly addition and subtraction.we have  discussed division using Nikhilam and paravartya  sutra and in the  Last class we have discussed on  straight division by dwajanga Sutra.  This is continuation of the same but using long  numbers.I will recommend everybody to go through  my earlier videos on division especially the one   previous to this. I will try my best to explain again. Here we have 7031985 as dividend to be divided by  823. As said earlier we will put 8 and above 8 we will  write 23 since two digits at the top in the divisor we  will keep a gap between the last two digits and the  front 5.sin...

Straight division uses Urdhwa Tirya  Straight division uses Urdhwa Tiryak sutra and this is used in all cases. Hello friends I am Dr Prema B Sejekan.This is the 20th class of Mathematics Tricks  and Fun. Straight Division is simple and easy to apply oneline mental method. Here,we are using the digits of  the divisor , in 2 groups.ie if 73, we write 7, 3 is written above it. and divide as described . Here we have two examples.The first one 4096 to be divided by 64As said earlier the divisor we will write as 6with 4written above it. we will arrange the dividend  into two groups. 409 and second gp with single digit  since the top one of the divisor is single digit.now we  will take first 2 digits of the divisor 40 to be divided by 6.we 6x6=36 which is written on the top of 40.Quotient  6 written below .now balance 4 written near 9.so it becomes 49.now we take 4 and multiply with 6 which gives 24 written below 49 and bance 25.This 25 is ...

Division using paravartya sutra 19 mathematics  Tricks and Fun   Hello friends, we are going to continue studying   division. This is the 19th lesson of mathematics  tricks and fun tutorial I am Dr Prema B Sejekan. We studied in the earlier class , Nikhilam sutra which is  used when dividing with big digits like 6,7,8,9 . Since  the complement of these digits are small, the division becomes easier. Now how will we divide with small  digit numbers? Here comes the paravartya sutrafor our help .  Paravartya yojayet means transpose and apply.we  use this when divisors are with small digit numbers. we have to change the sign with change of side I have shown here. Plus becomes minus,and vice versa, and divide becomes multiply and vice versversa, with  change of side.  Here I have given 3 examples. One in Nikhilam  method and the same how to do in paravartya. Now  we have to divide 1234 by 112. In Nikhilam ...

Division by Nikhilam, 18 mathematics tricks and fun  In the current system, We need to use trial digits when dividing with big divisors.in the vedic system We can  add or subtract for division which makes it easy. Here there are 4 methods of which argumental division  I am omitting since it is good for algebraical divisions  and not for arithmetical computations. (1)Nikhilam method used for big numbers,  (2)paravartya method for smaller digits.Best of all  these and (3)quick one is Straight Division. Nikhilam Sutra is used as said earlier when divisor is  with bigger digits like 6,7,8,90.we should find the complement of this and divide.  Here we have 3 examples. First 2 are two digit  numbers to be divided by 9.The third one is three digit dividend. In all these divisor is 9.The complement  of 9 is 1. We will write this as 9/1, as shown.Now We should count the digits in the divisor and that much  digits we should count...

Riddles, The 17th Lesson of Mathematics Tricks and Fun Hello friends,This is the 17th lesson of mathematics  tricks and fun tutorial . I am Dr Prema B Sejekan.  Today we shall have a quiz test from the portions we  have studied till now. All these days we have studied various methods for multiplication from Vedic mathematics .This helps us to quickly answer in  seconds multiplication with big numbers. Now let us  start the quiz. Can you answer these three questions ? What is the square of 999999 and 666666 and 333333.    You can do the calculation all three in 30 seconds. back ground music will play during waiting period. Answer is Sequence off five 9s, 8sequence of five 0s  and 1  Second question sequence of five 4s , 3 and sequence  of five 5s and 6 Third question. Sequence of five 1s , 0 and sequence of five 8s, and 9. Isn't it interesting.we have used here the special code  one more one less..y...

Tesla code Tesla-Code,16th-Lesson-ofMathematics-Tricks andFun When we hear Tesla we remember first Tesla cars and Elon Musk the Business Magnate . Today we are going to study the tesla code 369 . Hello friends ,welcome to the 16th class of mathematics Tricks and fun.I am Dr Prema B Sejekan. Nikolas Tesla strongly believed “Knowledge of the The Magnificence of the digits 369 holds the Key to the understanding of the Universe”. Now who is Nicolas Tesla?  Nicolas Tesla was born in 1856 and expired in 1943 . A Serbian American by birth, he was a great inventor engineer , who had a lot of patents to his credit. He patented rotating magnetic field used in alternating current. Tesla and George Westinghouse created the Hydroelectric power plant at Niagara falls .Tesla coil used in wireless and radio technology is another important invention. In fact Nicholas Tesla in his childhood used to passionately dream of harnessing electricity from Niagra Falls and he co...

 Maths Tricks and Fun 15-digital-sum Hello friends today we will study how multiplication becomes easy by the use of digital sum .What is  digital sum? It is the sum of the digits of a number  . Here its use in multiplication of big same digit  numbers ,their squaring and cubing are discussed.  Here use of digital sum in squaring of 4digit number  is shown the digit is 4 ie (4444) are to be squared..so  first we multiply the two outer fours 4×4 is 16 . We will write 1 then a gap and 6.Digital sum of 16 is 7 . So we have totally 8 digits in the answer.and outer digits we  have written and three digits each from either side we have to fillup.For this we will add 7 from either side  and progress Arithmetically . so 1+7 is 8,8+7 is15,  15+7is 22 stop here we have finished 4 digits on this  side .we will add 7 to the other side. 6+7 is 13, 13+7  is 20, 20+7 is 27. Now will add the carry overs and we  get 197...

Cube tricks of same digit number 14 lesson on mathematics Tricks and Fun Hello friends today we are going t o study the methods to find cube of same digit numbers.I am Dr Prema B Sejekan. We can use a special method to find the cube of these numbers.   Cube of unit digits   1.    1              6.              216  2     8              7.              343  3    27             8.              512  4    64.            9.              729  5    125.         10.            1000   First count the numb...

 Cube-Tricks,13thLesson-MathematicsTricks-and-Fun   Today we are going to study the methods to find cube of numbers.I am Dr Prema B Sejekan. We shall study methods using yavadunam sutra to find the cube of numbers. We should learn and keep ourselves ready with the square and cube of unit digits for a quick solving of the cubes of numbers..Here I have noted down the squares and cubes of commonly used digits.   In finding cube of a number,first   find the number of digits in the question and3/(3-1) times that will be the number of digits in the answer and   when first digit is 1,2,3 it will be    3-1,3-2 times digits , in the answer.  Mark the expected digits in the answer as dots.    This is Cubing by yavadunam tavadunokritya varge cha yojayet . Here cube of 103 is t he question.Here the base is 100.  3 is the excess and the main working digit is 3 here we multiply 3 with 3 which stands for the cube so 3 X ...