8th grade Quick Review

Write each product using an exponent. 
7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 

• 7⁷
• 7⁸
• 8⁷
• 7⁹

Which is equivalent to 2⁴

• 8
• 20
• 16
• 12

Which is equivalent to 5 x 5 x 5 x 5

• 5³
• 5⁴
• 4⁵
• 5⁵

Find the value (standard form) of the power. 
3³

• 9
• 6
• 27
• 12

5² , in this example 2 is the _____________

• base
• exponent

5² , in this example 5 is the ______

• base
• exponent

Another name for exponent is _______________ .

• radical
• base
• power
• fractional

Solve the equation:
20.5 = x + 4

• 16.5
• 16.05
• 24.5
• 24.05

The variable, k, is being divided by 11. How should you show your work to isolate the variable?

• Divide both sides by 11
• Multiply both sides by 11.
• Add 11 to both sides.
• Subtract 11 to both sides.

y/3=12

• 36
• -36
• 4
• -4