Squares and Square Roots

Determine whether each of the following numbers is a perfect square. Tick your answer.

• 4

• 90

• 196

• 225

Tags

CCSS.8.EE.A.2

Find the value of  $7^2$  

• 7

• 14

• 49

• 72

Tags

CCSS.6.EE.A.1

Find the value of  $\left(-9\right)^2$  

• -9

• 9

• -81

• 81

Tags

CCSS.7.EE.B.3

All of the followings are correct except

•  $\sqrt{1.21}=1.1$  

•  $9.4^2=18.8$  

•  $\left(-\frac{7}{9}\right)^2\ =\ \left(-\frac{7}{9}\right)\times\left(-\frac{7}{9}\right)=\frac{49}{81}$  

•  $\sqrt{12\ \frac{1}{4}}=\frac{\sqrt{49}}{\sqrt{4}}=3\ \frac{1}{2}$  

Tags

CCSS.HSN.RN.A.2

Estimate the value of $24.5^2$  

• 400

• 576

• 625

• 900

Tags

CCSS.8.NS.A.2

Estimate the value of  $\sqrt{92}$  

• 90

• 100

• 200

• 400

Tags

CCSS.8.NS.A.2

 $\sqrt{8}\times\sqrt{18\ }=$  

• 12

• 26

• 72

• 144

Find the value of $\sqrt{1\ \frac{7}{9}}$  .

•  $\frac{7}{9}$  

•  $\frac{4}{3}$  

•  $\frac{16}{9}$  

•  $\frac{17}{9}$  

Which of the following is TRUE?

• $\left(\frac{5}{11}\right)^2=\frac{10}{22}^{ }$

• $\sqrt{\frac{7}{15}}=0.68$

• $\left(-\frac{1}{3}\right)^2\ =-\frac{1}{9}$

• $\sqrt{64}=\sqrt{8\times8}=8^2$

Tags

CCSS.HSN.RN.A.2

Calculate the value of $\sqrt{109.4}$  correct to two decimal places.

• 10.00

• 10.45

• 10.46

• 10.50

Tags

CCSS.8.NS.A.2