Numbers

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# Numbers - PowerPoint PPT Presentation

Numbers. Free powerpoints at http://www.worldofteaching.com. Perfect Square. Squares of whole numbers. 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. Radical Sign.

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## PowerPoint Slideshow about 'Numbers' - allegra

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### Numbers

Free powerpoints at http://www.worldofteaching.com

Perfect Square
• Squares of whole numbers
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.
• The sign used to represent a nonnegative square root.
Principle Square Root
• A nonnegative square root
Irrational Number
• Numbers that cannot be expressed as a/b.
Real Number
• Irrational numbers together with rational numbers to form the set of all numbers.
Natural Numbers
• 1, 2, 3, 4...
Whole Numbers
• 0, 1, 2, 3, 4, 5...
Integers
• The whole numbers and their opposites.
• ...-3, -2, -1, 0, 1, 2, 3...
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.