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

The number before a variable is the _____.

• term
• constant
• coefficient
• variable

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

• multiplication
• subtraction
• addition
• dividing

Evaluate the following expression: 2b + 3

Where b = 7

• 30

• 12

• 17

• 24

Evaluate the following expression: m + 5p

Where m = 15

Where p = 4

• 79

• 35

• 69

• 24

Jamie uses the following expression to figure out how many wrapped presents she will have:

6h + s

The variable h represents how many hours she spends wrapping and s represents how many presents that were already wrapped. If she wrapped for 4 hours and already had 10 presents wrapped, how many wrapped presents will she have?

• 34 wrapped presents

• 74 wrapped presents

• 20 wrapped presents

• 40 wrapped presents

Michael uses the following expression to help figure out how much money he makes:

8w + t

The variable w represents the amount of weeks he works and t represents the number of tips he makes. If he works for 6 weeks and makes $20 in tips, how much money did he make?

• $26

• $68

• $106

• $34

Evaluate 2a + 4b 
if a = 10     and    b = 6

• 20
• 24
• 44
• 4

Write a expression for the phrase "18 times the number m"

• 18 + m
• 18 - m
• 18m
• 18 ÷ m