Squares and Square Roots WU 9/29/20

To square a number means to

• multiply it by itself

• multiply it by 2

• multiply it by 4

• multiply it by 2 and then add 2 to the product

5² means to...

• Multiply 5 by 2

• Add 2 to 50

• Multiply 5 by 5

• Add 5 and 2

What is the AREA of a square whose side measures 8 feet?

• 16 ft²

• 32 ft

• 32 ft²

• 64 ft²

The square root of a number,

 $\sqrt{x}$  means

• to find a number divided by 2 to give you "x"

• to find a number plus by 2 to give you "x"

• to find a number times itself to give you "x"

• to find a number minus by 2 to give you "x"

A perfect square is...

• a number whose square root is even

• a number whose square root is an integer

• a number whose square root is odd

• a number whose square root is positive