What could be the possible ones digits of the square root of the number 657666025.

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Solution

The digit at units place is 5. 5 at units digit can only be obtained from $5^{2}$
Hence, the square root of 657666025 will have 5 at units place.

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657666025

Question 1 (iv)
What could be the possible ‘one’s’ digit of the square root of following number:
657666025

What could be the possible One’s digits of the square root of each of the following numbers?

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$(i i) 99856$

$(i i i) 998001$

$(i v) 657666025$

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