Writing Values as Expressions with Powers of 10

The video tutorial teaches how to express values using powers of 10, focusing on scientific notation. It explains the patterns involved in multiplying and dividing numbers by powers of 10, using examples like 25,000 and 4 thousandths. The lesson concludes with a summary of these concepts.

What is the base number always used in scientific notation?

• 5

• 1000

• 10

• 100

How many times do you multiply 25 by 10 to express 25,000 as a power of 10?

• Two times

• Three times

• Four times

• Five times

What is the expression for 25,000 using a power of 10?

• 25 * 10^3

• 25 * 10^2

• 25 * 10^4

• 25 * 10^5

How do you express 4 thousandths using a power of 10?

• 4 / 10^5

• 4 / 10^3

• 4 / 10^2

• 4 / 10^4

To express 150 million as a power of 10, how many times do you multiply 15 by 10?

• Eight times

• Six times

• Five times

• Seven times