Decimal Operations and Properties

This lesson covers decimal points in products, focusing on multiplying by 10 and powers of 10. It explains how multiplying by 10 affects place value and explores the relationship between fractions and powers of 10. The lesson includes practical examples and exercises to reinforce understanding, encouraging students to apply rules for multiplying by fractions and decimals.

What happens to a number when it is multiplied by 10?

• The number becomes ten times smaller.

• The decimal point moves one place to the left.

• The decimal point moves one place to the right.

• The number remains unchanged.

How does dividing by 100 affect the decimal point of a number?

• It moves the decimal point one place to the right.

• It moves the decimal point two places to the left.

• It does not affect the decimal point.

• It moves the decimal point two places to the right.

What is the decimal representation of 48 divided by 100?

• 0.48

• 4.8

• 48

• 0.048

What is the result of multiplying 720 by 0.1?

• 7.2

• 72

• 720

• 0.72

How does multiplying by 1/10 affect the decimal point?

• Moves it two places to the left

• Moves it two places to the right

• Moves it one place to the left

• Moves it one place to the right

What is the result of 9.2 times 0.01?

• 0.092

• 9.2

• 0.0092

• 0.92

If you multiply a number by 0.001, how many places does the decimal point move?

• Three places to the right

• One place to the right

• Two places to the left

• Three places to the left

Which of the following is equivalent to 0.6 times 0.5?

• 0.06

• 0.3

• 0.03

• 6 times 0.1

Which property allows us to rearrange numbers in multiplication?

• Identity Property

• Commutative Property

• Distributive Property

• Associative Property

What is the equivalent fraction of 0.07?

• 70/100

• 7/1000

• 7/100

• 7/10