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Warm Up Simplify each square root 1.√8 2.√12
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Week at a Glance Monday: Rational and irrational numbers Tuesday: Simplifying Square Roots with numbers Wednesday: Simplifying Square roots with variables Thursday: Operations with square roots/review Friday: Quiz
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Warm Ups 10 points each day 1. Write down the question 2. Show work (if you can) 3. Correct answer *Use your warm ups as a second study guide
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Useful Tools 1. Website: mskristaevans.wordpress.com Daily PowerPoints Important upcoming dates Test information-study guide answers 2. Remind 101 Text: @27ab To: (470) 238-2447
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EOCT Practice One question a day We will have a winner each week- reward will be given
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EOCT QUESTION 1 1. In the diagram, ABC ~ DEF. Find length DF. a. 14.4b. 16.5c. 18.8d. 28.2
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Part I-Classifying What is a number? How do you classify it?
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Natural Numbers Natural numbers are the counting numbers: 1, 2, 3, …
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Whole Numbers are the natural numbers and zero: 0, 1, 2, 3, …
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Integers are whole numbers and their opposites: –3, –2, –1, 0, 1, 2, 3, …
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Rational Numbers Are all integers, fractions, terminating decimals, square roots of perfect squares: -3, ½, 5, 8.74,
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Irrational Numbers Can’t be expressed as a fraction or whole number. They include: Square roots of non-perfect squares Π, e, Non-terminating decimals
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After the game show…Keeping it straight! Natural NumbersIntegers Irrational Whole NumbersRational Numbers
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Part II-Properties Multiplication and Addition
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1. Commutative Property Commutative Property of Addition-- changing the order in which you add does not change the sum. So, More Examples:
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Commutative Property Commutative Property of Multiplication-- changing the order in which you multiply numbers doesn’t change the product. So, More Examples:
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2. Associative Property Associative Property of Addition-- changing the way the numbers are grouped does not change the sum. Add parenthesis to show Associative Property So,
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Associative Property Associative Property of Multiplication-- changing the way the numbers are grouped does not change the product. Add parenthesis to show Associative Property
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3. Identity Property Identity Property of Addition-- if you add zero to a number, you get the same number! 0 is called the identity of addition!!
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Identity Property Identity Property of Multiplication-- if you multiply a number by 1, you get the same number! 1 is called the identity of multiplication!!
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4. Inverse Property Inverse Property of Multiplication-- a number multiplied by its reciprocal equals 1.
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Inverse Property Additive Inverse Property--a number plus its opposite equals 0.
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5. Distributive Property A number outside parenthesis gets multiplied by every number inside parenthesis.
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Identify the Property Commutative Prop. Of Multiplication Identity Prop. Of Addition Associative Prop. Of Addition Identity Prop. Of Multiplication
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Part III-Order of Operations
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When we say the word OPERATION What are we talking about? What are some “Operations” in math? How can we remember what order to do them in? Does it matter?
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Do you remember PEMDAS?!?! P: “PHUNKY” stuff: Parentheses, Brackets, Braces, square Roots, and Absolute Value E: Exponents M/D: Multiplication/Division A/S: Addition/Subtraction
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Example #1
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Example 2
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