Question

what could be the possible 'one' ' s' digits of the square root of each of the following number 998001​

Answer 1

Answer:

Therefore, one's digit of the square root of 9801 should equal 1 or 9. We know that 62 = 36 & 42 = 16, both the squares have unit place 6. Therefore, one's digit of the square root of 99856 is equal to 6 or 4. Therefore, one's digit of the square root of 998001 should equal 1 or 9.