

5-6/5-7 Adding Subtracting Expressions
Presentation
•
Mathematics
•
7th Grade
•
Medium
Standards-aligned
Jennifer Fernéz
Used 5+ times
FREE Resource
4 Slides • 7 Questions
1
5-6/5-7 Adding Subtracting Expressions
You need: Paper & Pencil

2
Example 1
Delilah signs up for a health club with an initial fee of $65 and monthly fee of $40. She also signs up at a rock-climbing gym with an initial fee of $80 and monthly fee of $50. What expression represents her total fitness cost after m months?
3
Multiple Choice
Megan and Dan bought two cars, a Toyota and a Honda. To buy the Toyota, they put down a one time deposit of $2,000 and pay $300 per month. For the Honda, they put down a one time deposit of $3,000 and pay $250 per month. Write an expression to represent Megan and Dan's total cost for both cars after m months.
50+1000m
1000+50m
550+5000m
5000+550m
4
Multiple Choice
Joel spent $28 for an Internet data service and pays $4.50 per week. He spent $24.50 to join an online movie streaming site and pays $3.25 per week. Write an expression to represent Joel's total cost for both memberships after w, weeks.
42.50+8.25w
33.50+5.50w
52.50+7.75w
64.50+9.35w
5
Open Ended
Dillon says that 4b and -2b are not like terms because 4b is positive and -2b is negative. Is he correct? Explain.
6
Multiple Choice
Felipe is going to plant b sunflower seeds in one garden and 5b+10 sunflower seeds in another. How many seeds is Felipe going to plant altogether?
4b+10
6b+10
15b
16b
7
Multiple Choice
Liana is going to plant 3x sunflower seeds in one garden and 4x+2 sunflower seeds in another. How many seeds is Liana going to plant altogether?
9x
6x
x+2
7x+2
8
Example 2
An architectural engineer is sketching up the plan of a rectangular floor. The top and bottom side of the floor each have the length x, whereas the other two sides each have the length 2x+1. Write an expression to represent the perimeter of all four sides.
9
Multiple Choice
The width of a rectangle is 5x-3 feet and the length is x+2 feet. Find the perimeter of the rectangle.
12x-2
10x-1
8x-2
4x+5
10
Example 3
An company is making a rug that is shaped as a triangle. The length of the bottom of the triangle is x. Another side is 2 more than four times the length of the bottom of the triangle. The last side is 3 more than the bottom of the triangle. Write and simplify an expression for the perimeter of the triangle.
11
Multiple Choice
Nina has x coins. Clayton has 5 fewer coins than six times the number of coins Nina has. Write an expression for the total number of coins Nina and Clayton have altogether. Then simplify the expression.
4x+1
5x-2
7x-5
8x+3
5-6/5-7 Adding Subtracting Expressions
You need: Paper & Pencil

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