how do parentheses help us write algebraic expressions so we are clear on what they mean?
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How do parentheses help us write algebraic expressions so we are clear on what they mean?. For example, how do we write the algebraic expression “three less than a number, times twenty”?. In this lesson you will learn how to write and read algebraic expressions by using parentheses . - PowerPoint PPT PresentationTRANSCRIPT
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How do parentheses help us write algebraic expressions
so we are clear on what they mean?
For example, how do we write the algebraic expression “three less than a
number, times twenty”?
![Page 2: How do parentheses help us write algebraic expressions so we are clear on what they mean?](https://reader035.vdocuments.mx/reader035/viewer/2022062410/568160bc550346895dcfe1de/html5/thumbnails/2.jpg)
In this lesson you will learn how to write and read
algebraic expressions by using parentheses.
![Page 3: How do parentheses help us write algebraic expressions so we are clear on what they mean?](https://reader035.vdocuments.mx/reader035/viewer/2022062410/568160bc550346895dcfe1de/html5/thumbnails/3.jpg)
Let’s ReviewLet’s Review
25 - 3x - 2 I’m an algebraic
expression!
An algebraic expression contains at least one variable and
at least one operation.
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Let’s ReviewLet’s ReviewThere are alternative notations to show
multiplication without using the sign “x.”
Division can be shown in two ways.
2 • x2(x)2x
4 ÷ x
4x
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Let’s ReviewA Common Mistake
Forgetting to use parentheses correctly to create an expression within an expression.
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Let’s ReviewCore Lesson
three less than a number, times twenty( )
x - 3 ( )
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Let’s ReviewCore Lesson
(x -3) times twenty
20(x – 3)
factor factor
![Page 8: How do parentheses help us write algebraic expressions so we are clear on what they mean?](https://reader035.vdocuments.mx/reader035/viewer/2022062410/568160bc550346895dcfe1de/html5/thumbnails/8.jpg)
In this lesson you have learned how to write and read algebraic
expressions by using parentheses.
![Page 9: How do parentheses help us write algebraic expressions so we are clear on what they mean?](https://reader035.vdocuments.mx/reader035/viewer/2022062410/568160bc550346895dcfe1de/html5/thumbnails/9.jpg)
Let’s ReviewGuided Practice
Write the algebraic expression for:
eight times a number, plus five
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Let’s ReviewExtension Activities
Write an algebraic expression for:
the product of 12 and x, divided by the sum of 4 and x
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Let’s ReviewExtension Activities
Write the word form for:
5(25 – w) + 3w
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Let’s ReviewExtension Activities
Write the following algebraic expression:
The quantity of 10 less than y, times the product of 3 and y
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Let’s ReviewQuick Quiz
Write the algebraic expression for: eight times the quantity of a number plus six. Write the word form for: 15(9 _p) - 32