Comparing Numbers in Scientific Notation

The video tutorial explains scientific notation as a method to express large or small numbers without writing all zeros. It demonstrates how to compare numbers using scientific notation by examining the power of 10. The tutorial uses the example of the population of the United States and the world to illustrate how to determine which number is larger and by how much. It concludes by summarizing the process of comparing numbers using scientific notation.

What is the purpose of using scientific notation?

• To make numbers look more complex

• To convert numbers into fractions

• To simplify the writing of very large or small numbers

• To eliminate the use of numbers

How can you determine which number is larger when using scientific notation?

• By looking at the number of digits

• By comparing both the coefficients and the powers of 10

• By comparing the powers of 10 only

• By comparing the coefficients only

What is the standard notation of 3 times 10 to the power of 8?

• 3 billion

• 300 million

• 30 million

• 3 million

How many times larger is 7 times 10 to the power of 9 compared to 3 times 10 to the power of 8?

• 25 times

• 15 times

• 10 times

• 20 times

What conclusion can be drawn about the world population compared to the US population using scientific notation?

• The world population is more than 20 times greater

• Both populations are equal

• The world population is slightly larger

• The US population is larger