Question

Which of square of 132, 807, 724 and 209 would end with digit 1

Answer 1

Answer :

⇢The square of 209 ends with digit 1.

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Step-by-step explanation:

➵ As the square of 132 is 17424.

➵ Square of 807 is 651249.

➵ Square of 724 is 524176.

➵ But, the square of 209 is 43681.

OR

➵ Check the square of the last digit of the given numbers to check whether the number ends with 1 or not.

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