Square Roots and Cube Roots

Square Roots and Cube Roots

by Dyna Karas-Schilling

​Square roots

​The opposite of squaring a number.

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​When finding the square root of 16 think: "What # times itself = 16?"

Multiple Choice

$$\sqrt[]{64}$$  

• 32

• 8

• 60

• 128

Fill in the Blanks

$\sqrt[]{121}$  

Fill in the Blanks

$\sqrt[]{36}$  

​Perfect Squares

Multiple Select

Select all of the perfect squares

• 20

• 100

• 49

• 16

Multiple Select

Select all of the perfect squares

• 4

• 8

• 25

• 10

​Estimating square roots

Multiple Choice

What two consecutive whole numbers does $$\sqrt[]{45}$$  fall between?

• 4 and 5

• 5 and 6

• 6 and 7

• 5 and 9

Multiple Choice

What two consecutive whole numbers does $$\sqrt[]{80}$$  fall between?

• 7 and 8

• 8 and 10

• 9 and 10

• 8 and 9

Fill in the Blanks

Which whole number is $\sqrt[]{28}$  closest to?

Fill in the Blanks

Which whole number is $\sqrt[]{78}$  closest to?

Fill in the Blanks

Which whole number is $\sqrt[]{56}$  closest to?

​Cube roots

​The opposite of cubing a number.

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​Think ____ x ____ x ____ (all the same number) = 64

Multiple Choice

$$\sqrt[3]{27}$$  

• 3

• 9

• 24

Fill in the Blanks

$\sqrt[3]{125}$  

Fill in the Blanks

$\sqrt[3]{8}$  

Fill in the Blanks

$\sqrt[4]{81}$