Multiplying and Dividing by Powers of 10

The video tutorial explains how to multiply and divide by powers of 10, using a place value chart to demonstrate the movement of decimal points. It covers multiplying by 100, which involves moving the decimal two places to the right, and multiplying by decimals like 0.01 and 0.1, which involves moving the decimal to the left. The tutorial emphasizes understanding place value and the effect of multiplying by powers of 10 on the size of numbers.

What is the main topic discussed in the video?

• Adding and subtracting fractions

• Multiplying and dividing by powers of 10

• Solving quadratic equations

• Graphing linear equations

What happens to the place value when you multiply by 100?

• It moves two places to the right

• It stays the same

• It moves one place to the right

• It moves two places to the left

What is the result of 7.32 multiplied by 100?

• 0.732

• 732

• 7.32

• 73.2

How many places does the decimal move when multiplying by 0.01?

• Two places to the left

• One place to the left

• One place to the right

• Two places to the right

What is the effect of multiplying by 0.01 on the number 7.1?

• It becomes 7.1

• It becomes 0.71

• It becomes 71

• It becomes 0.071

What is the result of multiplying 7.1 by 0.1?

• 0.71

• 7.1

• 71

• 0.071

When dividing by 100, what happens to the place value?

• It moves two places to the left

• It moves two places to the right

• It stays the same

• It moves one place to the right

How many places does the decimal move when dividing by 100?

• One place to the left

• Two places to the right

• Two places to the left

• One place to the right

What is the result of 7.1 divided by 0.1?

• 71

• 0.71

• 7.1

• 0.071

What is the result of 7.32 divided by 100?

• 0.0732

• 73.2

• 0.732

• 7.32