Square Roots and Cube Roots

 $9^2=18$  True or false?

• True

• False

Tags

CCSS.8.EE.A.2

 $-\sqrt{144}$  

• 12

• -12

• -72

• none of the above (imaginary number) 

Tags

CCSS.8.EE.A.2

 $3_{\sqrt{8}}$    (cube root of 8) 

• 2

•  $\pm2$  

• -2

• None of the above 

Tags

CCSS.8.EE.A.2

The area of a square painting is 81  $cm^2$  . What is the length of one side?

• 9

• -9

• 40.5

• -40.5

Tags

CCSS.8.EE.A.2

 $\sqrt{\left(\frac{16}{81}\right)}\ \ =\ ?$  

•  $\frac{8}{27}$  

•  $\frac{8}{9}$  

•  $\frac{4}{9}$  

•  $\frac{4}{3}$  

Select the set with all perfect squares.

• -144, 9, 50, 75, 81, 100

• 9, 50, 81, 100

• 9, 50, 75, 81, 100

• 9, 81, 100

Tags

CCSS.8.EE.A.2

Arihaan, Viraav, and Arathana are solving math problems to win a race. They need to determine the approximate value of   $\sqrt{47}$ . Viraav insists the value is closer to 7, while Arathana is sure it is closer to 8. Arihaan thinks the value is closer to 6. Who do you agree with?

• Arihaan

• Viraav

• Arathana

• None of them

Tags

CCSS.8.NS.A.2

13²

• 26
• 196
• 144
• 169

Tags

CCSS.8.EE.A.2

Is 225 a perfect square?

• Yes
• No

Tags

CCSS.8.EE.A.2

 $^3\sqrt{1}=$  

• 1

• -1

• ±1

• none