Dividing by Powers of 10

This video tutorial teaches how to divide decimal numbers by 10 and 100 using place value understanding. It explains the concept of multiples of 10 and 100, and how digits shift when dividing by these numbers. The tutorial provides examples to illustrate the process and concludes with key takeaways on the topic.

What is a characteristic of multiples of 10?

• They are all prime numbers.

• They are all odd numbers.

• They all end in two zeros.

• They all end in zero.

How can any multiple of 100 be expressed?

• As a number times 5

• As a number times 10

• As a number times 100

• As a number times 1000

What happens to a number when it is multiplied by 100?

• It is multiplied by 10 once.

• It is divided by 10 once.

• It is divided by 10 twice.

• It is multiplied by 10 twice.

When dividing a number by 10, what happens to the decimal point?

• It shifts one place to the right.

• It shifts one place to the left.

• It shifts two places to the right.

• It shifts two places to the left.

In the example of dividing 9800 by 10, where does the 9 move?

• From the 100th place to the 10th place

• From the 10th place to the 1000th place

• From the 10th place to the 100th place

• From the 100th place to the 1000th place

How many places does the decimal point shift when dividing by 100?

• One place to the right

• Two places to the right

• One place to the left

• Two places to the left

What is the effect of dividing a number by a power of 10?

• The number becomes negative.

• The number becomes smaller.

• The number remains the same.

• The number becomes larger.

What is the relationship between dividing by 100 and dividing by 10?

• Dividing by 100 is like multiplying by 10 twice.

• Dividing by 100 is like dividing by 10 twice.

• Dividing by 100 is like dividing by 10 once.

• Dividing by 100 is like multiplying by 10 once.

When dividing 4100 by 100, where does the 4 move?

• From the 100th place to the 10th place

• From the 10th place to the 1000th place

• From the 100th place to the 1000th place

• From the 10th place to the 100th place

What is the key concept to remember when dividing by powers of 10?

• The decimal point shifts to the right.

• The number becomes a fraction.

• The number becomes larger.

• The decimal point shifts to the left.