Expressions Practice

Substitution

100

evaluate if x=5 

x+1

6

200

evaluate if x=10 

2x+3

23

300

evaluate if x=2.5 

4x

10

400

evaluate if x=2 and y=3 

x+2y

8

500

evaluate if x=5 and y=12 

3(x+y)

51

Like Terms

100

2x + 3x

5x

200

-12b + -7b

-19b

300

-2x + 3r + 5x

3x + 3r

400

-6x + 77b + -48x + -8b 

-54x + 69b

500

2x² + r +6x²

8x² + r

Distribution

100

4 (x + z)

4x + 4z 

200

6 (2 + b)

12 + 6b

300

7 (-5 + 2r)

-35 + 14r

400

-11 (-4 + -2r)

44 + 22r

500

-12 (14 - 7r) 

-168r - 84r

Factoring

100

6r + 12

6 (r + 2)

200

35z + 7

7 (5z + 1)

300

88 - 8x

8 (11 - x)

400

-12 + -4x 

4 (-3 + -x)

500

-96 - 24b

24 ( -4 - b)

Vocabulary

100

Replacing one symbol with a number or a variable.

Substitution

200

An unknown value.

Variable

300

A combination of numbers and variables separated by operation signs. Ex: 2x+3

Expression

400

Two expressions that have the same value.

Equivalent expressions

500

A statement of equality between two expressions.

Equation