Review of Expressions

Identify the coefficient in the expression
4m + n + 2

• 2
• 4
• m
• n

Identify the variables in the expression
3x +  9

• x
• y
• 9
• 3x

How many terms are in the expression
3x + 2y + z

• 5
• 2
• 4
• 3

What step would I do second?
 (4 - 2) x 9 + 7 =

• multiplication
• subtraction
• addition
• dividing

Which expression matches:
The sum of 6 and 5 doubled

• 2 x 6 + 5
• 2 x (6 + 5)
• 6 + (5 x 2)

What does the (E) in PEMDAS mean?

• experience
• exponents
• examples
• evidence

(3 + 4)² - 32 

• 7
• 112
• 17
• -7

2 + 7 ⋅ 5

• 37
• 45
• 32
• 23

12 ÷ 3 x 4
What do you do first?

• 3x4
• 12÷4
• 12÷3

True or false:
4x5 and 4∗5 mean the same thing.

• True
• False