HOW TO FIND SQUARE ROOT AND CUBE ROOT OF A NUMBER IBPS BANK MATERIAL

HAPPY READING

HI FRIENDS MANY OF US KNOW DIFFERENT METHODS AND PROCEDURES FOR FINDING SQUARE ROOT AND CUBE ROOT OF A NUMBER. I KNOW YOU ALL ARE GENIUS IN DOING SO , HERE I TO AM GOING TO SHOW YOU VERY SIMPLE WAY OF CALCULATING SQUARE ROOT AND CUBE ROOT OF A NUMBER.''








HMM. YES I THINK ITS REALLY INTERESTING RIGHT TO KNOW SHORTCUTS.

IN BANKING EXAMS "TIME MANAGEMENT" IS AN IMPORTANT FACTOR WHICH DETERMINES YOUR SUCCESS SO IN THIS REGARD PEOPLE WHO WANNA BE FIRST ALWAYS IN THEIR MIND CAN EASILY ACHIEVE IT.

THE ABOVE THINGS CAN HAPPEN IF YOU KNOW SHORT-CUTS.

MORE THE PRACTICE YOU YOURSELF WILL FIND MORE NO OF SHORT-CUTS





OK NOW LETS SEE HOW TO FIND SHORTCUTS FOR FINDING SQUARE ROOT AND CUBE
ROOT OF ANY NUMBER



SQUARE ROOT:

QUESTION : EXAMPLE FIND THE SQUARE ROOT OF 2116


STEP1: SEE REMEMBER SQUARE MEANS VALUE 2 AND CUBE MEANS VALUE 3 ..SO TO 

CALCULATE SQUARE ROOT OF 2116 ....TAKE LAST TWO DIGITS (REMEMBER IN SQUARE 

ROOT WE HAVE TO TAKE LAST TWO DIGITS AND CUBE ROOT LAST THREE DIGITS TO 

CONSIDER) SO HERE WE TAKE 16 ...IN 2116 


STEP 2: 16 MEANS SEE LAST DIGIT 6 SO ...6 COMES IN EITHER 4 SQUARE OR 6 SQUARE..SO 

LAST NUMBER IS EITHER 4 OR 6.. KEEP IT IN MIND



STEP 3: NOW TAKE ANOTHER TWO DIGITS FROM 2116 ,,,IE; 21  .SUPPOSE IF WE TAKE 

2SQUARE=4, 3 SQUARE=9, 4 SQUARE=16, AND SEE CAREFULLY 5SQUARE=25 I EXCEEDS 

21..SO TAKE 4 SQUARE ...ONLY

STEP5:SO ANSWER IS EITHER 46 OR 44 

ANY CONFUSION: SEE ABOVE STEPS CAREFULLY AND EASILY YOU CAN DO NEXT TIME 

WHEN U PRACTICE MORE YOU WILL SEE AND SAY THE ANSWER.


STEP6: OUT OF 44 AND 46 WHICH IS THE RIGHT ANSWER.



STEP 7: ALWAYS TAKE MIDDLE NUMBER IN SERIES 40 TO 49..IE; 45 OR ALWAYS TAKE 

NUMBER IN SERIES OF OUR ANSWER IE; 40 TO 49 ENDING WITH 5.


WHY WE CONSIDER ONLY ENDING WITH 5 BECAUSE ITS VERY EASY TO FIND OUT ANSWER 

USING THIS

SO ANY NUMBER ENDING WITH 5 

SHOERTCHUT IS 

45 SQUARE =  4 MULTIPLIED BY ITS NEXT NUMBER AND 5 SQAURE IN UNIT DIGIT PLACE


                          TENS DIGIT PLACE                                                           UNIT DIGIT  PLACE

                          4 X 5=20                                                                               5X5=25

SO 45 SQUARE =2025


LAST STEP:

DECIDING ANSWER BY SEEING 45 SQUARE

WE NEED TO FIND SQUARE OF 2116 .. SO 45 SQAURE =2025 SO 2116 IS GREATER THAN 2116

HENCE OUR ANSWER-46






I AM GOING TO POST CUBE ROOT SEPARATELY IN DIFFERENT POST...HAPPY READING