SWBAT WRITE ALGEBRAIC EXPRESSIONS USING GROUPING SYMBOLS AND THE PHRASE LESS THAN SWBAT WRITE WRITTEN EXPRESSIONS FROM ALGEBRAIC EXPRESSIONS AlgebraicWritten Algebraic Expression x 2 5 ID: 525226
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Slide1
Writing Algebraic Expressions
SWBAT WRITE ALGEBRAIC EXPRESSIONS USING GROUPING SYMBOLS AND
THE PHRASE LESS THAN. SWBAT WRITE WRITTEN EXPRESSIONS FROM ALGEBRAIC EXPRESSIONS.Slide2
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.Slide3
Practice
Write a written expression for (x + 4) ÷ 10
Write an algebraic expression for
four times the difference of a number and 6Slide4
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 - xSlide5
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 3nine more than the product of 2 and a numberWrite a written expression for each algebraic expression2n + 82(n+3) - 5n - 1010 - nSlide6
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 – nWrite an algebraic expression for ten less than the sum of six and a number.