Show:
Vocabulary
Write Expressions
Evaluate Expressions with Variables
Distributive Property
Order of Operations (PEMDAS)
100
A letter used to represent a number is called a
variable
100
Write the expression: Add 4 to x
x + 4
100
Evaluate y + 2 when y=9
11
100

Distribute 3 ( 4 + 5)

12 + 15

100

Which operation should be done first? 

17 - (12-10) x 4

(12-10)

200
An expression which contains variables is called an
algebraic expression
200
Write the expression: Subtract x from 8
8 - x
200
Evaluate y - 5 when y = 9
4
200

Distribute 12 (6 - 2)

72 - 24

200

15 - 2 x 4

7

300
When two expressions are compared using > or <, the whole statement is an
inequality
300
Write the expression: Multiply x by 7
7x
300
Evaluate the expression 9y when y = 9
81
300

Distribute 5 ( y + 9)

5y + 45

300

Fern made a mistake. Name which step was a mistake:

(9 - 3) x 6 + 1

Step 1: 6 x 6 + 1

Step 2: 6 x 7

Step 3: 42

Step 2

400
If two expressions have the same value, the whole statement is an
equation
400

Write the expression: Divide x by 2

x / 2

400

Evaluate y-17 when y = 9 9

82

400

Distribute 5 (2x + z)

10x + 5z

400

18 / ( 4 x 1 + 1) 

3

500
To find the value of the variable that will make an equation true is to _____________ the equation.
solve
500

Write the expression: Subtract 7 from x and then divide by 3

(x - 7) / 3

500
Evaluate the expression 5y + 5 when y = 9
50
500

Reverse distribute (factor) this: 7a + 21

7 (a + 3)

500

14 - (20 - 2 x (3+1))

2