10/18- 10/22 Math 7 Raider Prep Activity

Select all of the following numbers that are less than $\frac{3}{7}$ . You must select all that apply. 

•  $12.5\%$  

•  $0.3$  

•  $50\%$  

•  $\frac{2}{3}$  

•  $0.102$  

Choose all of the numbers below that are perfect squares. You must select all that apply.

• 40

• 324

• 250

• 169

• 81

Which value is greater than  $-\frac{1}{4}$  ?

• -0.25

• -0.3

• -0.08

• -0.297

Which is the square root of 361?

• 11

• 17

• 18

• 19

Which of the following is equivalent to  $10^{-4}$ ?

•  $-10^4$  

•  $\frac{1}{10\cdot10\cdot10\cdot10}$  

•  $10^4$  

•  $\frac{1}{10}\cdot\frac{1}{10}\cdot\frac{1}{10}$  

Keevyn has a bag of Jolly Ranchers. Keevyn gave  $\frac{3}{8}$  of the bag to Zavion and  $\frac{1}{4}$  of the bag to Qeisha. Then Keevyn gave  $\frac{1}{2}$  of the remaining candy to his favorite teacher. How much of the total candy did Keevyn give to this teacher? 

•  $\frac{3}{8}$  

•  $\frac{7}{8}$  

•  $\frac{3}{16}$  

•  $\frac{7}{16}$  

Which of the following numbers is equivalent to  $10^{-3}$  ?

•  $-10^3$  

•  $-\frac{1}{1,000}$  

•  $0.0001$  

•  $\frac{1}{10}\cdot\frac{1}{10}\cdot\frac{1}{10}$  

A dolphin is 30 feet below the surface of the water. She rises 23 feet, sinks 17 feet, and finally rises another 4 feet. If there are no other changes, the dolphin is -

• 20 feet below the surface of the water

• 40 feet below the surface of the water

• 40 feet above the surface of the water

• 24 feet below the surface of the water

Which of the following sets of numbers is in ascending order (least to greatest)?

•  $2.5\%,\ \frac{2}{5},\ 0.25\$  

•  $2.5\%,\ 0.25,\ \frac{2}{5}\$  

•  $\frac{2}{5},\ 0.25,\ 2.5\%$  

•  $\frac{2}{5},\ 2.5\%,\ 0.25$  

A virus is viewed under a microscope. Its diameter is 0.0000002 meters. How would this length be expressed in scientific notation?

• $2\times10^{-7}\$ meters

• $2\times10^{-6}\$ meters

• $2\times10^6$ meters

• $2\times10^7\$ meters