Exploring Multiplication & Division Properties of Equality

The video tutorial covers various properties of equality, focusing on multiplication and division. It explains the inverse and identity properties of multiplication, followed by associative and commutative properties. An example problem is solved step-by-step, demonstrating the application of these properties. The video concludes with an explanation of the distributive property and its usefulness in handling variables.

What properties were discussed in the previous video?

• Distributive and Identity

• Associative and Commutative

• Addition and Subtraction

• Multiplication and Division

Tags

CCSS.3.OA.B.5

What is the multiplication property of equality?

• a = b then a * c = b * c

• a = b then a - c = b - c

• a = b then a + c = b + c

• a = b then a / c = b / c

What must be true for the division property of equality to hold?

• a must be greater than b

• c must not be zero

• a must be less than b

• c must be a positive number

Tags

CCSS.HSA.REI.A.1

What is the inverse property of multiplication?

• a * a = a^2

• a * (1/a) = 1

• a * 0 = 0

• a * 1 = a

Tags

CCSS.6.NS.B.4

What does the identity property of multiplication state?

• a * 1 = a

• a * 0 = 0

• a * (1/a) = 1

• a * a = a^2

Tags

CCSS.3.OA.B.5

Which property allows you to change the grouping of factors in a multiplication problem?

• Commutative Property

• Distributive Property

• Associative Property

• Identity Property

Tags

CCSS.3.OA.B.5

What does the commutative property of multiplication state?

• a * (b * c) = (a * b) * c

• a * b = b * a

• a * (1/a) = 1

• a * 1 = a

Tags

CCSS.3.OA.B.5

In the example problem, what property is used when dividing both sides by 21?

• Multiplication Property of Equality

• Division Property of Equality

• Associative Property

• Commutative Property

Tags

CCSS.HSA.REI.A.1

What is the final step in solving the example problem?

• Using the distributive property

• Using the commutative property

• Using the associative property

• Simplifying the equation

Tags

CCSS.8.EE.C.7B

What does the distributive property allow you to do?

• Change the order of multiplication

• Distribute a factor across terms inside parentheses

• Group factors differently

• Simplify fractions

Tags

CCSS.3.OA.B.5