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Estimating Square root of a Number Speed Math Squaring and Square Roots

[Speed Math] ESTIMATING SQUARE ROOT OF A NUMBER

Here’s an example of a SPEED MATH shortcut for ESTIMATING SQUARE ROOT OF A NUMBER : (Sq) Sqrt from the SQUARING AND SQUARE ROOTS category.

Estimating Square root of a Number

When can I use this method?

For estimating square roots of any number.

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pdf Download Practice sheet for ESTIMATING SQUARE ROOT OF A NUMBER

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Notes –

  1. This method gives a close approximation of the answer. In most cases it does not give the exact answer. The estimated answer is generally within an error margin of 0.5% to 2%.
  2. In order to get closer to the exact answer, keep repeat steps 4 and 5 with the estimated square root values.

Related Shortcuts –

None

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