Question

find the cube root of 421875 by estimation method​

Answer 1

Answer:

Make group of 3 digits from unit place 421 875 First group 875 : - unit digit is 5 , so unit digit of cube root will be 5 . Since 5 3 = 12 5 Second group 421 : - It lies betwen 7 3 = 343 and 8 3 = 512 . So , take the smaller number 7 as ten ' s place . Hence , cube root of 421875 = 75 .

Answer 2

Answer:

75

Step-by-step explanation:

the cube root of 421875 is 75