Expressions & Equations Carousel

Welcome to Math 6

Objectives1. Apply and extend previous

understandings of arithmetic to algebraic expressions.

2. Reason about and solve one-variable equations and inequalities.

3. Represent and analyze quantitative relationships between dependent and independent variables.

a.12.25n b.6.50 +5.75nc. 6.50n +5.75 d. 6.50n +5.75n

Hannah babysits to earn money. She charges $6.50 to babysit for the first hour. She charges $5.75 for each additional hour. Let n equal the number of hours after the first hour.

Which expression represents how much Hannah charges?

Exa

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le 1

a. f ≥ 200 b. f ≤ 200c. f > 200 d. f > 200

Suppose the weight of a stove and a freezer together weigh at least 370 pounds. The weight f -the stove, is 170 pounds. Which inequality describes these conditions for the weight of the freezer?

Exa

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le 2

a. 2w+6 c. 2w+12b. 4w+6 d. 4w+12

The length of a rectangle is 6 inches longer than the width. Which choice is a correct expression for the perimeter of the rectangle?

Exa

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le 3

a. 4x+8y c. x+8yb. 4x+2y d. 8x+8y

Which choice is equivalent to the expression 4(x+2y)?

Exa

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le 4

What is the greatest whole number that is less than:

)÷)

Exa

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le 5

1,000(3.50x) 1000

3.50 3.50

Jane wants to visit her sister. Her car travels x miles per gallon of gas. She will travel 1,000 miles to her sister’s house. Gas costs $3.50 per gallon. Which expression shows how much Jane will spend for gas?

x

1000

1000

x

x350

1

Exa

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le 6

Conclusion

“Expressions and equations” will become a bigger focus in math 7 and beyond. This is the foundation of algebra. Be sure you review this section carefully.

Assignment

Websites with great games:

http://www.math-play.com/Algebraic-Expressions-Millionaire/algebraic-expressions-millionaire.html

http://education.jlab.org/sminequality/