Properties of Addition and Subtraction

Which of the following shows the commutative (flip flop) property of addition?

• 8 + 2 = 2 + 8

• (8 + 2) + 1 = 8 + (2 + 1)

• 8 + 0 = 8

• 8 + 2 = 6 + 4

Which of the following shows the identity property of addition?

• 8 + 2 = 2 + 8

• (8 + 2) + 1 = 8 + (2 + 1)

• 8 + 0 = 8

• 8 + 2 = 6 + 4

Which of the following shows the associative property of addition?

• 8 + 2 = 2 + 8

• (8 + 2) + 1 = 8 + (2 + 1)

• 8 + 0 = 8

• 8 + 2 = 6 + 4

Which property is shown: 7 + 0 = 7

• Commutative

• Associative

• Identity

• This is not a property.

Which property is shown: (7 + 3) + 5 = 7 + (3 + 5)

• Commutative

• Associative

• Identity

• This is not a property.

Which property is shown: 5 + 4 = 4 + 5

• Commutative

• Associative

• Identity

• This is not a property.

Which of these is TRUE?

• 8 + 0 = 9

• 37 + 41 = 41 + 37

• (1 + 2) + 3 = 4 + (5 + 6)

• 2 + 3 = 2 x 3

The __________ Property of Addition says that the sum of any number and 0 is the number.

• Commutative

• Associative

• Identity

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

• 3 + 0 = 3

• 3 + 1 = 4 and 1 + 3 = 4

• 3 + 4 + 2 = 9 and 4 + 2 + 3 = 9

• 3 + 1 = 4 and 3 + 4 = 1

What number fills in the blank?
5 + (7 + 6) = (5 + ___) + 6

• 8

• 6

• 5

• 7