Solving Square and Cube Roots

Write an equation for this phrase, "2 cubed is equal to the square root of x." 

• 2³ = √x

• 2² = √x

• 4 = √16

• √x = 2

If x³ = -27, then x equals

• -3

• -9

• +3 and -3

• +9 and -9

A cube with side length s has a volume of 64 cubic units. What is the length of the side of the cube?

• 32 units

• 16 units

• 8 units

• 4 units

In between what two integers is the square root of 77?

• 5 and 6

• 6 and 7

• 7 and 8

• 8 and 9

In between what two integers is the square root of 44?

• 3 and 4

• 4 and 5

• 5 and 6

• 6 and 7

Between which two whole numbers is the 
√20 ?

• 5 and 6

• 10 and 2

• 4 and 5

• 3 and 4

 Which is the best estimate of the of √3?

• 1 

• 2

• 1 ⅔

• 2 ⅔

Which number has a square root that  is between 5 and 6?

• 48

• 81

• 28

• 36

The square root of 99 falls between which two consecutive whole numbers?

• 7 and 8

• 8 and 9

• 10 and 11

• 9 and 10

(cube root of -1)

• 1

• -1

• none of the above (imaginary number)