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What could be the possible 'one's' digits of the square root of each of the following numbers? (iv) 657666025

Q1. What could be the possible ‘one’s’ digits of the square root of each of the following numbers?

(iv) 657666025

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We know that square of a number ending with 5 gives 5 at its units place.

So the possible ‘one’s’ digits of the square root of 657666025 are 5.

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