Operations with Scientific Notation

The space shuttle orbits Earth at a speed of approximately 2.8 × 10⁴ kilometers per hour. The longest shuttle mission was about 4.2 × 10² hours. Find the approximate distance that the shuttle traveled during its mission.

1.176 × 10⁷

The diameter of a red blood cell 8.4 × 10⁻⁶. The diameter of the average cell in the human body is 1 × 10⁻⁵. How many times larger is the diameter of the average cell than the diameter of the red blood cell?

1.19 times larger

The mass of Earth is 5.972 × 10²⁴ kg. The mass of Venus is 4.867 × 10²⁴ kg. How many times greater is the mass of Earth than the mass of Venus?

1.227 times greater

How many more people inhabited the Earth in 2005 than in 1985?

1.5 × 10⁹

In 2007, there were about 7.21 × 10⁷ dogs kept as pets in the U.S. In the same year, there were about 8.17 × 10⁷ cats kept as pets. About how many dogs and cats were kept as pets?

1.538 × 10⁸

(6.14 x 10³) + (9.98 x 10³)

1.612 x 10⁴

The land area of Russia is approximately 1.71 × 10⁷ square kilometers. The land area of Canada is approximately 9.99 × 10⁶ square kilometers. How many times larger is Russia than Canada?

1.71 times larger

(2.97 x 10²) x (6.5 x 10¹)

1.9305 x 10⁴

The 2010 population of the U.S. was about 1.16 × 10⁹ people. The population of India in the same year was about 3.1 × 10⁹ people. About how many more people lived in India than in the U.S.?

1.94 × 10⁹

The mass of the Sun is approximately 3.1 × 10⁶ times greater than the mass of Mars. If the mass if Mars is 6.42 × 10²³ kg, find the mass of the Sun.

1.99 × 10³⁰

(7.1 x 10³) × (2.9 x 10⁴)

2.059 x 10⁸

(6.7 x 10³) × (3.3 x 10⁴)

2.211 x 10⁸

(2.24 x 10⁴) ÷ (8 x 10²)

2.8 x 10¹

The state of Colorado covers about 1.04 × 10⁵ square miles. The indian Ocean covers about 2.808 × 10⁷ square miles. How many times bigger that colorado is the Indian Ocean?

270 times bigger

The mass of Jupiter is 1.89 × 10²⁷ kg. The mass of Venus is 4.87 × 10²⁴ kg. How many times greater is the mass of Jupiter than the mass of Venus?

388 times greater

(3.6 x 10⁴) ÷ (9 x 10¹)

4 x 10²

(8.5 x 10⁵) ÷ (2.125 x 10²)

4 x 10³

The population of Springfield is 7.21 × 10³. The population of Kansas City is 3.46 × 10⁷. How many times larger is Kansas City than Springfield?

4.7988 × 10³

In 2018, the national debt of the United States is 2.1 × 10¹³ dollars. If the U.S. population is about 327,000,000 what is the debt-per-person amount in dollars?

6.4 × 10⁴

(8.25 x 10⁷) ÷ (1.25 x 10³)

6.6 x 10⁴

(1.5 x 10³) × (4.7 x 10²)

7.05 x 10⁵

(3.33 x 10⁴) + (4.2 x 10⁴)

7.53 × 10⁴

(6.4 x 10⁶) ÷ (8 x 10³)

8 x 10²

(3.49 x 10⁵) - (2.5 x 10⁵)

9.9 x 10⁴

The population of the United States is 3 × 10⁸ and the population of the world is 7 × 10⁹. How many times larger is the population of the world than the U.S.?

About 23 times larger

Students at Salt Lake Community College pay 1.585 × 10⁴ dollars for tuition. Students at George Washington University pay 4.573 × 10⁵ dollars. How many times greater is the tuition at George Washington University?

About 28 times greater

In 2005, how many times greater than China's population is the population of the world? Round to the nearest whole number.

About 5 times greater