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9-2 Extension: Negative Rational Numbers Lesson Presentation Lesson Presentation
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9-2 Extension: Negative Rational Numbers Learn to compare and order negative rational numbers.
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9-2 Extension: Negative Rational Numbers A rational number is a number that can written as a ratio, with any integer as the numerator, and any integer except 0 as the denominator.
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9-2 Extension: Negative Rational Numbers Additional Example 1A: Comparing Negative Rational Numbers Use, or = to compare each pair of numbers. A. Write the fractions using a common denominator. Compare.
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9-2 Extension: Negative Rational Numbers Additional Example 1B: Comparing Negative Rational Numbers Use, or = to compare each pair of numbers. B. –0.5 –3 Line up the decimal points and compare from left to right. –0.5 –3.0 0 is greater than –3. –0.5 > –3
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9-2 Extension: Negative Rational Numbers Additional Example 1C: Comparing Negative Rational Numbers Use, or = to compare each pair of numbers. C. Write –1/2 as a decimal. Compare. –0.5 < –0.3
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9-2 Extension: Negative Rational Numbers Check It Out: Example 1A Use, or = to compare each pair of numbers. A. Write the fractions using a common denominator. Compare.
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9-2 Extension: Negative Rational Numbers Check It Out: Example 1B Use, or = to compare each pair of numbers. B. –0.4 –14 Line up the decimal points and compare from left to right. –0.4 –14.0 0 is greater than –14. –0.4 > –14
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9-2 Extension: Negative Rational Numbers Check It Out: Example 1C Use, or = to compare each pair of numbers. C. Write –1/5 as a decimal. Compare. –0.2 = –0.2
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9-2 Extension: Negative Rational Numbers Additional Example 2: Ordering Rational Numbers Use a number line to write the numbers in order from least to greatest. Graph the numbers on a number line. –5 –4 –3 –2 –1 0 1 2 3 4 5 2.2–10–2 –3 1/4
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9-2 Extension: Negative Rational Numbers Check It Out: Example 2 Use a number line to write the numbers in order from least to greatest. Graph the numbers on a number line. –5 –4 –3 –2 –1 0 1 2 3 4 5 4.2 –4 0–2 –4 1/2
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