Perfect Squares & Square Roots

What is the square of 4?

• 2

• 4

• 8

• 16

What is the square of 7?

• 7

• 14

• 49

• $\sqrt{7}$

What is this symbol called?

 $\sqrt{ }$  

• Integer

• Radical

• Radicand

• Index

 $\sqrt{25}$  =  ?

• 5

• 25

• 225

• Banana

 $\sqrt{81}$  =  ?

• 7

• 8

• 9

• I love math

What is a PERFECT SQUARE?

• The product when you multiply a number by itself

• When you half a number

• The square root

• Radical

Is 35 a perfect square?

• NO, it is an odd number

• NO, there is not a number that can be squared to equal 35

• YES, 6 x 6 = 35

• YES, 5 x 6 = 35

Is 49 a perfect square?

• YES, 6 x 6 = 49

• YES, 7 x 7 = 49

• NO, it is a prime number

• NO, there is no number that can be squared to equal 49

Which of the following is a RATIONAL number?

(there are 2 answers)

• $3.\overline{33}$

• $\pi$

• 1.93273869.....

• 8

Which of the following is an IRRATIONAL number?

(there are 2 answers)

• 5.13591762738649....

• 1/2

•  $\pi$  

•  $5.\overline{24}$