Multiplying Decimals by Powers of Ten

This video tutorial explains how to multiply decimals by powers of 10, including 10, 100, and 1000, and how to handle cases where there are not enough digits to move the decimal. It also covers multiplying by fractions of 10, such as 1/10 and 1/100, and how these operations affect the position of the decimal point.

What happens to the decimal point when multiplying by 10?

• It disappears

• It moves one place to the left

• It moves one place to the right

• It stays in the same place

If you multiply 12.845 by 100, where does the decimal point move?

• It moves three places to the right

• Two places to the left

• Two places to the right

• It stays in the same place

What is the result of multiplying 5.763 by 1,000?

• 576.3

• 0.5763

• 5763

• 57.63

How do you handle decimal multiplication when there are not enough digits?

• Ignore the missing digits

• Only move the decimal for existing digits

• Move the decimal as needed and add zeros

• Stop the multiplication

What is the result of 1.4 times 100?

• 0.14

• 1.40

• 140

• 14

When multiplying by 1/10, in which direction does the decimal point move?

• It disappears

• To the right

• It doesn't move

• To the left

What is the result of multiplying 27 by 1/10?

• 27.0

• 0.27

• 270

• 2.7

If you multiply 86.43 by 1/10, what is the result?

• 86.43

• 0.8643

• 864.3

• 8.643

What happens when you multiply a number by 1/100?

• The decimal moves two places to the left

• The number becomes 100 times smaller without moving the decimal

• The decimal moves two places to the right

• The decimal stays in place

What is the result of multiplying 86.43 by 1/100?

• 0.08643

• 8.643

• 0.8643

• 864.3