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Writing Algebraic Expressions

Writing Algebraic Expressions. SWBAT WRITE ALGEBRAIC EXPRESSIONS USING GROUPING SYMBOLS AND THE PHRASE LESS THAN. SWBAT WRITE WRITTEN EXPRESSIONS FROM ALGEBRAIC EXPRESSIONS. Algebraic→Written. Algebraic Expression→ (x +2) · 5 How can we write this as a written expression?

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Writing Algebraic Expressions

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  1. Writing Algebraic Expressions SWBAT WRITE ALGEBRAIC EXPRESSIONS USING GROUPING SYMBOLS AND THE PHRASE LESS THAN. SWBAT WRITE WRITTEN EXPRESSIONS FROM ALGEBRAIC EXPRESSIONS.

  2. Algebraic→Written • Algebraic Expression→ (x +2) · 5 • How can we write this as a written expression? • Let’s break it down into 2 parts. • How could you write (x + 2) as a written expressions? • The sum of a number and two. • Make sure and say “a number” instead of “the sum of n and two” The word sum prompts you to add first. (It is telling us we need the answer). Next we combine the two parts: The sum of a number and two, times five.

  3. Practice • Write a written expression for (x + 4) ÷ 10 • Write an algebraic expression for four times the difference of a number and 6

  4. Carrie has 30 fewer dollars than her friend. Here is a written expression showing the amount of money Carrie has. 30 less than x Which of the following represents this? • X – 30 • 30 - x

  5. Write an algebraic expression to match each written expression: seven less than two times a number the difference of a number and 9 divided by 4 the sum of a number and 6, times 3 nine more than the product of 2 and a number Write a written expression for each algebraic expression 2n + 8 2(n+3) - 5 n - 10 10 - n

  6. Exit Ticket • Write an algebraic expression for three times the sum of a number and eight. • Write a written expression for the algebraic expression using less than: 9 – n • Write an algebraic expression for ten less than the sum of six and a number.

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