Unit 2 Topics

Combining Like Terms

100

3x + 5x +2y

8x + 2y

200

2a – 4b + 3a + b

5a - 3b

300

6m + 2n – 3m +5n

3m + 7n

400

4a – 5b + 2c – 3a + 4b -c

a - b + c

500

You have a quadrilateral with the following sides: 3x, 4x -1, 2x + 3, and 5x - 2. 

Find the perimeter. 

14x 

Evaluating Expressions

100

3x, if x=3

9

200

3y + 2, if y=2

8

300

2x - 4y, if x=2 and y=3 

-8

400

4(3x + 2y - 7x), if y=1 and x=3

-40

500

A rectangular banner has a length of 2x + 5 feet and a width of 3 feet. What is the area when x=2?

54 feet

Creating Expressions

100

I have $50 and I spend $27 at the store. How much do I have left?

$50 - $27

200

You and a few family members are going to a concert where each ticket is $22. How much will be spent in total? 

$22x

300

Paying $5 for each ticket plus a $2 fee

5x + 2

400

You have to buy a set of notebooks for school that costs $12 each and there is also a $7 shipping fee.

$12x + $7

500

You are planning a party. You spend $3 per guest for snacks, $2 per guest for drinks, and $50 for decorations.

$3x + $2x + $50

Find the Equivalent

100

4(x)

4x

200

6(x + 2)

6x + 12

300

5(2x - 3y)

10x - 15y

400

4(7x + 3) - 21x

7x + 12

500

-3/6 (4x - 10)

-2x + 5

Factoring

100

2x + 4

2(x + 2)

200

3x + 15

3(x + 5)

300

15x + 30

15 (x + 2)

400

16x - 20y + 36z 

4 (4x - 5y + 9z)

500

3x + 15x + 30x 

3x (1 + 5 + 10)