Properties of + and x

Which one of the following is an example of the zero property?

• 23 + 0 = 23
• 0 + 90 = 90
• 4, 275 x 0 = 0
• 80 - 0 = 80

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

• 75 + 23 = 98
• 62 + 19 = 19 + 62
• (3 + 4) + 5 = 3 + (4 + 5)
• 98 + 0 = 98

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

• 58 + 0 = 58
• 58 x 0 = 0
• 58 + 1 = 59
• 58 x 1 = 58

This example shows which property?
6( 2 + 4) = (6 x 2) + (6 x 4)

• associative
• commutative
• identity of addition
• distributive

This example shows which property?
9(1 x 7) = (9 x 1)7

• commutative
• associative
• distributive
• identity

This example shows which property?
517 x 1 = 517

• identity of addition
• one property
• identity of multiplication
• associative

Use your knowledge of properties to fill in the missing number.
604 + ___ = 604

• 1
• 0
• 10
• -2

Use your knowledge of properties to find the missing number.
4( 2 + 3) = (4 x 2) + (____ x 3)

• 1
• 2
• 3
• 4

Use your knowledge of properties to find the missing number.
5( 2 + 10) = 10 + _______

• 5
• 2
• 50
• 100

Use your knowledge of properties to find the missing number.
2(5 x 7) = (2 x ___)7

• 5
• 2
• 7
• 1