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Published byRebeka Lukács Modified over 5 years ago
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Discuss with a partner and record your thoughts.
Which set is larger: Integers or Whole Numbers? Why? What is the difference between Whole Numbers and Natural Numbers?
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Square Roots and Irrational Numbers
Mrs. Spanier 8th Grade Math
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Square Roots Perfect square = product of a number mutiplied by itself. (4 • 4 = 16) The square root of 16 is 4... … and -4! (-4 • -4 = 16)
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Solve: Find the square roots. 8 or -8 -6 (negative indicates only -6)
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Solve: Estimate the square roots (round to 1 decimal place).
About ±6.3 About ±12.2
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Rational Numbers Can be made into a fraction a/b, where b ≠ 0.
Repeating OR terminating decimal. 2/3 …
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Irrational Numbers Cannot be made into a fraction a/b, where b ≠ 0.
Repeating AND non-terminating decimal. π …
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The Number System
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Classify the Following:
Irrational … Rational (equals -⅓)
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Classify the Following:
… Irrational (no end, no repetition) 1⅔ Rational (can be 5/3) Rational (equals 10 or 10/1)
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The End
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