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- 1. Multiple-choice5 minutes1 pt
**Which expression is equivalent to 10**^{-2}**Ã· 10**^{-14}**?**10

^{7}10

^{12}10

^{16}10

^{28} - 2. Multiple-choice5 minutes1 pt
**Which expression is equivalent to the picture?**5

^{6}/ 7^{2}5

^{6}/ 75

^{10}/ 75

^{10}/ 7^{2} - 3. Multiple-choice5 minutes1 pt
**What is the simplified form of the expression below?****(2**^{2}**)**^{4}**x 2**^{-5}2

4

2

^{3}4

^{3} - 4. Multiple-choice5 minutes1 pt
What is the expression in the image written as a fraction in simplest form?

1/64

1/8

3/16

3/4

- 5. Multiple-choice5 minutes1 pt
Which expression is equivalent to 2x

^{-2}y^{-4 }? - 6. Multiple-choice5 minutes1 pt
Which of these is equivalent to the image?

2

^{-19}1 / 2

^{7`}1/2

2

^{3} - 7. Multiple-choice5 minutes1 pt
Which numerical expression is equivalent to the image?

4

^{12}4

^{13}4

^{12}x 34

^{13}x 3 - 8. Multiple-choice5 minutes1 pt
Simplify the expression.

1/5

1

125

625

- 9. Multiple-choice5 minutes1 pt
Which expression is equivalent to the image?

-81

-12

1/12

1/81

- 10. Multiple-choice5 minutes1 pt
Which expression is equivalent to the image?

1 / 3

^{10}1 / 3

^{6}3

^{2}3

^{4} - 11. Multiple-choice5 minutes1 pt
**Approximately 2 x 10**^{4}**vehicles drive across the top of Hoover Dam between Nevada and Arizona daily. How many days will it take until the one-millionth car crosses the dam?**5

50

500

5000

- 12. Multiple-choice5 minutes1 pt
**The distance from Earth to the Sun is approximately 9 x 10**^{7}**miles. The distance from Earth to the moon is approximately 2 x 10**^{5}**miles. Approximately how many times the distance from the Earth to the Moon is the distance from Earth to the Sun?**18

45

222

450

- 13. Multiple-choice5 minutes1 pt
**A small paper clip weighs about 0.0005 kilogram. What is 0.0005 written in scientific notation?**5 x 10

^{-4}5 x 10

^{-3}5 x 10

^{3}5 x 10

^{4} - 14. Multiple-choice5 minutes1 pt
The mass of the Earth is 3 x 10

^{-6}times the mass of the Sun. If the mass of the Sun is 2 x 10^{30}kilograms, what is the mass of the Earth, in kilograms?6 x 10

^{36}6 x 10

^{24}6 x 10

^{-5}6 x 10

^{-180} - 15. Multiple-choice5 minutes1 pt
An adult red panda weighs about 5.0 Ã— 10

^{3}grams. An adult giant panda weighs about 1.5 Ã— 10^{5}grams. About how many times larger is the giant panda than the red panda?2

3

20

30

- 16. Multiple-choice5 minutes1 pt
The average distance from Jupiter to the Sun is about 7.784 Ã— 10

^{8}km. How should this distance be written in standard form?778,400,000,000 km

7,784,000,000 km

778,400,000 km

77,840,000 km

- 17. Multiple-choice5 minutes1 pt
**Which expression is equivalent to****(8 x 10**^{-2}**)(2.4 x 10**^{-3}**)**19.2 x 10

^{6}19.2 x 10

^{5}1.92 x 10

^{-4}1.92 x 10

^{-6} - 18. Multiple-choice5 minutes1 pt
**A ship weighs 1.2 x 10**^{4}**tons when it is empty. The shipâ€™s cargo, fuel, and crew weigh a total of 4.6 x 10**^{3}**tons. What is the total weight of the ship with the cargo, fuel, and crew on board?**5.8 x 10

^{4}4.72 x 10

^{4}1.66 x 10

^{4}1.246 x 10

^{4} - 19. Multiple-choice5 minutes1 pt
**One micron (a millionth of a meter) is equivalent to 3.937 x 10**^{-5}**inch. One thousand microns would be equivalent to what part of an inch?**3.937 x 10

^{-8}3.937 x 10

^{-5}3.937 x 10

^{-2}3.937 x 10

^{2} - 20. Multiple-choice5 minutes1 pt
**The distance from Tallahassee, Florida, to London, England, is 4.368 x 10**^{3}**miles. The distance from London, England, to Tokyo, Japan, is 6.424 x 10**^{3}**miles. If you were to fly from Tallahassee to London and then to Tokyo, how many miles would you have traveled?**2.056 x 10

^{3}28.06 x 10

^{3}1.0792 x 10

^{4}10.792 x 10

^{6} - 21. Multiple-choice5 minutes1 pt
Which expression is equivalent to

3.25 x 10

^{6}+ 3.25 x 10^{5}3.575 x 10

^{2}2.925 x 10

^{6}3.575 x 10

^{6}6.5 x 10

^{11} - 22. Multiple-choice5 minutes1 pt
Which value is equivalent to

2.4 x 10

^{4}- 1.7 x 10^{2}238,300

23,830

2,230

70

- 23. Multiple-choice5 minutes1 pt
What is the value of the expression in the image?

2,000

4,500

15,000,000

20,000,000