Square Roots/Cube Roots and Rational/Irrational Numbers

 $\sqrt{49}$  

• 7

• 6

• 178

• 6.5

 $\sqrt{144}$  

• 14

• 7

• 12

• 20,736

 $\sqrt{16\ }$  

What is a square root, and how do you calculate it? Use the above problem as an example.

Which number(s) is a perfect square? Select any that apply.

• 14

• 38

• 25

• 101

Tags

CCSS.6.EE.A.1

 $\sqrt{20}$  

Approximate. Then describe how you got your answer.

An irrational number... (select all that apply)

• Is any whole number

• Goes on forever with numbers to the right of the decimal point that are non-repeating

• Is any number that can be expressed as a ratio of two integers

• Can be a number with digits to the right of the decimal point that repeat.

Tags

CCSS.8.NS.A.1

Select all of the rational numbers.

• $\sqrt{81}$

• $\frac{2}{3}$

• $\sqrt{2}$

• $-7$

Tags

CCSS.6.NS.C.6

CCSS.6.NS.C.7

 $^3\sqrt{27}$  

• 9

• 3

• 81

• 6

Tags

CCSS.6.EE.A.1

 $^3\sqrt{64}$  

• 192

• 21.3

• 8

• 4

Check all the are TRUE for perfect squares.

• Their square roots are always rational.

• Their square roots are always positive.

• Their square roots are always irrational.

• Their square roots are always even numbers.