Commutative Property of Addition

The video tutorial introduces the properties of real numbers, focusing on the commutative property of addition. It explains that the order of numbers in addition does not affect the sum, using examples like 3 + 7 = 7 + 3. The video also clarifies that subtraction does not have the commutative property, as changing the order of numbers affects the result. The instructor provides a candid moment of self-correction and concludes by reinforcing the concept of the commutative property of addition.

What does the commutative property of addition state?

• a + b = b + a

• a - b = b - a

• a / b = b / a

• a * b = b * a

Which of the following is an example of the commutative property of addition?

• 5 / 2 = 2 / 5

• 5 + 2 = 2 + 5

• 5 - 2 = 2 - 5

• 5 * 2 = 2 * 5

What is the result of 3 + 7 using the commutative property?

• 0

• 3

• 7

• 10

Why does the commutative property not apply to subtraction?

• Because subtraction is not associative

• Because subtraction changes the order of numbers

• Because subtraction results in different outcomes when order is changed

• Because subtraction is only applicable to integers

Which operation is not commutative?

• Division

• Addition

• Subtraction

• Multiplication