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Real Numbers

Real Numbers. Lesson 0-2. Real Numbers. Rational Numbers. Repeating decimals Terminating decimals .5 .333333333333 √25 ⅞. Integers. Positive whole numbers Negative whole numbers …-3,-2,-1,0,1,2,3,…. Whole Numbers. Positive numbers Includes zero 0,1,2,3,….

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Real Numbers

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  1. Real Numbers Lesson 0-2

  2. Real Numbers

  3. Rational Numbers • Repeating decimals • Terminating decimals • .5 • .333333333333 • √25 • ⅞

  4. Integers • Positive whole numbers • Negative whole numbers • …-3,-2,-1,0,1,2,3,…

  5. Whole Numbers • Positive numbers • Includes zero • 0,1,2,3,…

  6. Examples: Graph and order real numbers • { • Graph and order the real numbers from least to greatest.

  7. Example:Write a repeating decimal as a fraction Write .2323232323… as a fraction Step 1 N = .2323232323… 100N= 100(.2323232323…) 100N=23.2323232323… - N= .2323232323… 99N= 23 99 99 N= 23/99

  8. Example : Simplifying Roots • Simplify each root. • = • = = 2

  9. Example: Estimating roots • Find the two perfect squares closest to 15 • 1,4,9,16,25,36,… • 9˂ 15˂16 • 3 • Best whole number estimate is 4.

  10. Assignment Page P10 # 2-38 even

  11. Natural Numbers • Counting numbers • 1,2,3,…

  12. Irrational • Cannot be expressed as a repeating or terminating decimals • √3≈ 1.73205… • π

  13. Perfect Squares

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