Terms from Chapter 8 8th Math John West

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Terms from Chapter 88th MathJohn West
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Perfect Square

• Squares of whole numbers

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Square root

• One of two equal factors of a number. If a
  squared equals b then a is the square root of b.
  The square root of 144 is 12 because 12 squared
  is 144.

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Radical Sign

• The sign used to represent a nonnegative square
  root.

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Principle Square Root

• A nonnegative square root

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Irrational Number

• Numbers that cannot be expressed as a/b.

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Real Number

• Irrational numbers together with rational numbers
  to form the set of all numbers.

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Natural Numbers

• 1, 2, 3, 4...

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Whole Numbers

• 0, 1, 2, 3, 4, 5...

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Integers

• The whole numbers and their opposites.
• ...-3, -2, -1, 0, 1, 2, 3...

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Rational Numbers

• Any number that can be expressed in the form a/b
  where a and b are integers and b is not equal to
  0.

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Study all these terms for next QUIZ!