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Estimating square roots - class-VIII

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QuestionClick to flip
Find the square root by guessing the units and tens digit:
$2116$
AnswerClick to flip back
A
$46$
💡 Explanation:

Its unit digit is 6 and tens digit is 1


For unit digit 6 , there are two possibilities either the square root end with 6 or 4

And according to options $46$ is the correct option

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