Question

19683,Find the cube root of the given number by estimation method?

Answer 1

Answer:

19683 is an odd number so it's cube

root has to an odd number.

Step 1 :

Make two groups from right to left .

First group = 683

Second group = 19

Step 2 :

First group 683 unit digit is 3 So

unit digit of cube root will be 7

Step 3 :

Second group 19 it lies between

( 2³ = 8 ) and ( 3³ = 27 )

So take the smaller number 2 as ten's

place .

Therefore ,

cube root of 19683 = 27

I hope this helps you.