Question

EXERCISE 6.3 1. What could be the possible 'one's' digits of the square root of each of the following numbers?
(I)99856​

Answer 1

Answer:

6

Step-by-step explanation:

Unit's digit of the square root of number 99856 is equal to 6. iii. We know that the unit's digit of the square of a number having digit as unit's place 1 is 1 and also 9 is 1[ 9 2 9^{2} 92 =81 whose unit place is 1].

Answer 2

Required answer :-

We know that the unit’s digit of the square of a number having digit as unit’s place 6 is 6 and also 4 is 6² = 36 and 4²=16, both the squares have unit digit 6.

∴ Unit’s digit of the square root of number 99856 is equal to 6.

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Hope my answer satisfied you.

Regards,

Kritika ♡