Teaching Expressions and Equations

Write an algebraic expression for:
8 more than a number

• 8 + n

• 8n

• 8 -n

• n-8

Identify the variables in the expression
3x +  9

• x

• y

• 9

• 3x

Write the expression.
$5 less on dinner than James spent.

• 5 + j 

• j x 5 

• j - 5 

• j ÷ 5 

Evaluate the equation:

(10 + 5) - 6

• 9

• 10

• 11

• 12

Evaluate the following expression: x - 6

Where x = 32

• 38

• 26

• 18

• 4

Evaluate the following expression: 2b + 3

Where b = 7

• 30

• 12

• 17

• 24

Evaluate 4y  if       y = 3

• 7

• 12

Write an algebraic expression for:
6 minus a number

• n - 6

• 6 - n

• 6n

• 6 + n

What does the "E" stand for in PEMDAS?

• Equation

• Expression

• Exponents

• Elephant

A variable is a

• number

• letter that represents a number