Quick Reference ~ A maths Dictionary for Kids by Jenny Eather Email jeather@iprimus.com.au A Maths Dictionary for Kids by Jenny Eather at www.amathsdictionaryforkids.com



• another name for an irrational number.
• a surd is a real number that can be written as
a nonrepeating or nonterminating decimal
but not as a fraction because
the decimal goes on forever
without repeating.

Phi, pi and the square root of prime numbers
are surds or irrational numbers.

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