Instant Square Roots

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Interactive Practice Lab & Online Test

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Find the square root of perfect squares in seconds by observing the last digit.

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Frequently Asked Questions

Does this work for non-perfect squares?

This specific trick is for perfect squares. For non-perfect squares, there is a more advanced approximation method in Vedic Maths.

How do I know the last digit?

Squares end in specific digits (1, 4, 5, 6, 9, 0). For example, if a number ends in 9, its square root must end in 3 or 7.

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