Exponent Review

Which is equivalent to 7 x 7 x 7 x 7 x 7 x 7 
?

• 7⁵
• 7⁶
• 6⁷
• 7⁷

A scientist reports that a bacteria culture contains 3⁴ bacteria.
How many bacteria is that?

• 12
• 81
• 7
• 95

Which number is the VALUE?
2⁴ 

• 2
• 4
• 16

Simplify: -5 + 9N + 6

• 11 + 9N
• 1 + 9N
• 1-9N
• 10N

Simplify: 5a + 2b - 3a + 4

• 8a + 2b + 4
• 2a + 2b + 4
• 8ab
• 4ab + 4

Simplify: 8x - 8d

• 8

• xd

• 0

• They are unlike terms, so cannot be simplified.

• 10

• 2

Simplify: -6²

• 36

• 12

• -36

• -12

Simplify: (-3)⁴

• 81

• -81

• 12

• -12