Chapter 3 : Squares, Square Roots, Cubes and Cube Roots.

What is a square?

• Something you multiply by the 3rd power
• A shape
• A number you multiply by itself

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CCSS.6.EE.A.1

What is a square root

• A number to the second power
• A square that has roots on it
• Square roots are numbers that produce a specified quantity when multiplied by itself
  

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CCSS.8.NS.A.1

True or false? 9² = 18

• True

• False

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CCSS.8.EE.A.1

Is 225 a perfect square?

• Yes
• No

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CCSS.8.EE.A.2

Which number is both a perfect square and a perfect cube?

• 64

• 27

• 81

• 16

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CCSS.8.EE.A.2

To find the square root of a number, you must divide it by 2.

• True
• False

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CCSS.8.EE.A.2

 $-\sqrt{36}=$  

• -6

• 6

• -18

• 12

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CCSS.8.EE.A.2

 $\sqrt{64}=$  

• 32

• 8

• 4

• 16

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CCSS.8.EE.A.2

 $^3\sqrt{-8}$  =

• 2

• -2

• ±2

• None

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CCSS.8.EE.A.2

 $^3\sqrt{64}=$  

• -8

• 8

• 16

• 4

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CCSS.8.EE.A.2