find the cube root of 42875 by ones and tens digit method Share with your friends Share 2 Vijay Kumar Gupta answered this It is required to find the square root of 42875First divide the number into two parts such that the right hand side has 3 digits and the remaining two digits comes in left hand side. 42 | 875The cube root of the given number contains two digits, one at tens place and one at ones place.Find the digit at tens place using the left side of the original number that is 42and find the digit at ones place using the right hand side of the number that is 875Find two perfect cubes such that the number 42 lies between them.Note that 27<42<64Take the cube root of smaller number 27 to get 3Thus 3 is the digit at tens place. Note that the original numbeer 42875 ends in 5.Also, if the original number ends in 5, then its cube root ends in 5.This implies that the cube root of the number 42875 has 5 at its ones place.Thus the required numbner is 35Hence 428753=35 -4 View Full Answer
