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1-3 REAL Numbers :-

1-3 REAL Numbers :-. New Vocabulary:. Real Numbers :. A number that is either RATIONAL or IRRATIONAL. Natural Numbers :. “Counting Numbers” 1,2,3….etc [note: not zero or any negative numbers.]. Whole Numbers :.

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1-3 REAL Numbers :-

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  1. 1-3 REAL Numbers :- New Vocabulary: Real Numbers : A number that is either RATIONAL or IRRATIONAL Natural Numbers : “Counting Numbers” 1,2,3….etc [note: not zero or any negative numbers.] Whole Numbers : Counting numbers inclusive of zero 0,1,2,3…etc [Note: no negative numbers.] Integers : Whole numbers & their negatives -2,-1,0,1,2 …etc A number that can be written as a ratio of two integers. Ex: ½ or -3/4 [note: In decimal form the number is either terminating or repeating. Ex: 8.222…. ] Rational Numbers : Irrational Numbers : A number that can’t be written as a ratio of two integers. Ex: “pi” [Note: In decimal form the number is non-terminating & non-repeating ex: π ] Inequality : A mathematical sentence that uses an inequality symbol. Ex: ≤ , ≥ , < …etc Absolute Value : All positive REAL numbers.

  2. REAL NUMBERS IRRATIONAL NUMBERS RATIONAL NUMBERS NATURAL NUMBERS WHOLE NUMBERS INTEGERS NUMBERS RATIONAL NUMBERS

  3. Name the set(s) of numbers to which each number belongs:- 1) -12 2) 12 3) -4.67 4) 5/12 5) √4 6) √6

  4. INEQUALITIES  INEQUALITIES  Comparing Numbers…. INEQUALITIES  Less Than and Equal to Less Than Greater Than and Equal to Greater Than Equal to Is not equal to

  5. -1/2 -1/8 Ordering Fractions…. Which is larger, -1/8 or -1/2 ? Hint: you may want to look at the decimal equivalents! or you may remember, number get larger as we move to the right on a number line! -1 0 1 Write -3/8 , -1/2 and -5/12 in order from least to greatest.

  6. CLASS WORK = PAGE 20 – 21 = NUMBERS “even’s” up to # 40 & # 57 – 62, 64 & 65 HOME WORK = Practice Worksheet 1-3 = Numbers 1-33

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