Estimating Square Roots - Concept

Concept Concept (1)

When a radical is not a perfect square (1, 4, 9, 16, ), estimating square roots is a valuable tool. When asked to estimate the value of a radical between two consecutive integers, find the two perfect squares that are slightly less and slightly more than the radicand. Also, remember that negative numbers do not have a real number square root.

Sample Sample Problems (2)

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Estimating Square Roots - Problem 1

Find each square root:

a) -√81
b) √-81
c) √1⁄16
d) ±√0.01
Problem 1
How to find square roots of fractions and decimals.