# 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

**Solution:**

If the number ends with 1, then the one’s digit of the square root of that number maybe 1 or 9

If the number ends with 6, the one’s digit of the square root of that number maybe 4 or 6

If the number ends with 5, the one’s digit of the square root of that number will be 5

(i) 9801

Since the number ends with 1, the one's digit of the square root maybe 1 or 9

(ii) 99856

Since the number ends with 6, the one’s digit of the square root maybe 4 or 6

(iii) 998001

Since the number ends with 1, the one’s digit of the square root maybe 1 or 9

(iv) 657666025

Since the number ends with 5, the one’s digit of the square root will be 5

**Video Solution:**

## 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

### NCERT Solutions for Class 8 Maths - Chapter 6 Exercise 6.3 Question 1

**Summary:**

The possible one's digit of the square root of the given numbers (i) 9801 (ii) 99856 (iii) 998001 (iv) 657666025 could be (i) 1 or 9, (ii) 4 or 6, (iii) 1 or 9, (iv) 5