Expressions, Variables and Exponents

Which is greater?

2⁷ or 7²

• 2⁷

• 7²

• neither

5p + 4h - 2
Which are the variables? 

• 5p, 4h, 2

• 2

• p, h

• 5, 4

In this expression what is the variable? 
5 + y 

• q
• +
• 5
• y

What is the variable in 3x - 5

• x

• 5

• 3

Evaluate the expression when x = 4

5 + x

• 5

• 5 + x

• 9

• 1

Evaluate the expression when e = 2

10 - e + 4

• 12

• 14

• 9

• 7

Evaluate the expression when x = 10

(x + 2) ÷ 6

• 4

• 10

• 5.66

• 2

Write each product using an exponent. 
4 x 4 x 4 x 4 x 4 

• 4⁵

• 5⁴

• 4⁶

• 4⁶

What is the exponent form for 
6?

• 6⁰

• 6¹

Which number is the BASE?
2³ = 8

• 2

• 3

• 8