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Lesson 9-2 Pages The Real Number System Lesson Check 9-1

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What you will learn! How to identify and compare numbers in the real number system. How to solve equations by finding square roots.

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Vocabulary Irrational numbers Real numbers

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**What you really need to know!**

The set of real numbers consists of all natural numbers, whole numbers, integers, rational numbers, and irrational numbers. (Lesson 5-2)

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**What you really need to know!**

Rational numbers can be written as fractions. Irrational numbers are decimals that do not repeat or terminate.

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**What you really need to know!**

Irrational Numbers: , Rational Numbers 1.8 0.7 -3.222… Integers -5 -12 Whole Numbers 6 15 Natural Numbers 1, 2, 3 ,...

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Page 441

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**17 Natural Number Whole Number Integer Rational Number**

Example 1: Name all the sets of numbers to which each real number belongs. 17 Natural Number Whole Number Integer Rational Number

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**Integer Rational Number**

Example 1b: Name all the sets of numbers to which each real number belongs. Integer Rational Number

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**Natural Number Whole Number Integer Rational Number**

Example 1c: Name all the sets of numbers to which each real number belongs. Natural Number Whole Number Integer Rational Number

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Example 1d: Name all the sets of numbers to which each real number belongs. irrational number

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**< Replace the ? with <, > or = to make a true statement.**

Example 2: Replace the ? with <, > or = to make a true statement. <

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**Order from least to greatest.**

Example 2b: Order from least to greatest.

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**Solve the equation. Round to nearest tenth if necessary.**

Example 3: Solve the equation. Round to nearest tenth if necessary.

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**Solve the equation. Round to nearest tenth if necessary.**

Example 3: Solve the equation. Round to nearest tenth if necessary.

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Page 443 Guided Practice #’s 3-12

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**Pages 441-443 with someone at home and study examples!**

Read: Pages with someone at home and study examples!

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Homework: Pages #’s even, even, even, 64, 65, 69-71, 77, 78 Lesson Check 9-2

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Page 745 Lesson 9-2

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Lesson Check 9-2

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Page 441

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Page 441

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