Dividing Whole Numbers and Decimals by Powers of Ten

This video tutorial explores the concept of powers of ten, starting with raising ten to various powers and identifying the pattern of zeros that follow. It then transitions into division problems involving powers of ten, demonstrating how to simplify these calculations by moving the decimal point. The tutorial concludes with examples of dividing decimals by powers of ten, emphasizing the shortcut of moving the decimal point to the left based on the exponent. This method is reinforced through multiple examples, ensuring a clear understanding of the process.

What is ten to the power of three?

• 1000

• 100

• 10

• 10000

How many zeros follow the number one in ten to the power of four?

• 4

• 1

• 2

• 3

What is the result of eighty divided by ten?

• 8

• 0.8

• 80

• 800

What is the quotient of nine thousand, two hundred divided by one hundred?

• 920

• 92

• 9200

• 9.2

When dividing by a power of ten, how do you determine the number of places to move the decimal point?

• Move to the right one place

• Move to the left the same number of places as the exponent

• Move to the left one place

• Move to the right the same number of places as the exponent

What is the result of seventeen point eight divided by ten?

• 0.178

• 17.8

• 1.78

• 178

How do you know which direction to move the decimal point when dividing by a power of ten?

• Move to the right because the number gets larger

• Move to the left because the number gets smaller

• Move to the right because the number gets smaller

• Move to the left because the number gets larger

What is the quotient of one hundred thirty-six point two nine divided by one thousand?

• 13.629

• 1.3629

• 0.13629

• 136.29

What is the result of forty-eight thousand, one hundred thirty-six point two nine divided by ten million?

• 0.004813629

• 0.0004813629

• 0.04813629

• 0.4813629

When dividing by ten to the seventh, how many places do you move the decimal point?

• 7

• 5

• 3

• 10