Chapter 3: Expressions Review

Parts of an Expression

100

List the terms and like terms:

7 + 4r − 5 + r + 2s

Terms: 7, 4r, -5, r, 2s

Like Terms: 7 and -5, 4r and r

200

Simplify: 

2.5x + 4.3x − 5

6.8x - 5

300

Simplify:

14 − 3m + 8 + m 

22 - 2m

400

Simplify:

8 + 4a - 6.2 − 9a

1.8 - 5a

500

Simplify:

1/2k -5 -1/4k +7

1/4k+2

Add or Subtract Linear

100

Find the sum:

(x + 3) + (2x − 1)

3x+2

200

Find the sum:

(4.5 − n) + (−10n + 6.5)

-11n+11

300

Find the difference:

(5x - 6) − (−x + 6)

6x -12

400

Find the difference:

(−2c + 5) − (6.3c + 20)

8.3c - 15

500

Find the sum: 

(-3/5x + 4) + (1/10x - 6)

-5/10x - 2   OR   -1/2x - 2

Distribute

100

Distribute:   4(9x+2)

36x+8

200

Distribute:   -3(-2w+13)

6w-26

300

Distribute: −1.4(−5 + 7g) 

7 - 9.8g

400

Distribute:

7(2y-3) +5(3y+2)

29y - 6

500

Distribute:  1/2(6n+4) -2n

1n + 2  OR n + 2

Factor

100

Factor out the GCF:

16n − 24

8(2n - 3)

200

Factor out the GCF:

36c + 24d

12(3c+2)

300

Factor out the GCF:

12 + 9g − 30h 

3(1+3g - 10h)

400

Factor −4 out of −8k − 12

-4(2k+3)

500

Factor -4 out of 16p − 28  

-4(-4p+7)