Premium Online Home Tutors
3 Tutor System
Starting just at 265/hour

1.What could be the possible ‘one’s’ digits of the square root of each of the following numbers?
(i) 9801

(ii) 99856

(iii) 998001

(iv) 657666025


Answer :

One’s digit of any number depends on the one’s digit of the number of which it is square of. Here we have:
(i) One’s digit in the square root of 9801 can be 1 or 9.

(ii) One’s digit in the square root of 99856 can be 4 or 6.

(iii) One’s digit in the square root of 998001 can be 1 or 9.

(iv) One’s digit in the square root of 657666025 can be 5.

NCERT solutions of related questions for Squares and Square Roots

NCERT solutions of related chapters class 8 maths

NCERT solutions of related chapters class 8 science