Chapter 2-1 "Addition Properties and Subtraction Rules"

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

• Commutative

• Associative

• Identity

Tags

CCSS.2.NBT.B.5

CCSS.2.NBT.B.9

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

• 3 + 0 = 3
• 3 + 1 = 4 and 1 + 3 = 4
• 3 + 4 + 2 = 9 and 4 + 2 + 3 = 9
• 3 + 0 = 0

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

Tags

CCSS.1.OA.B.3

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

• 8
• 6
• 5
• 7

Tags

CCSS.1.OA.B.3

CCSS.1.OA.C.6

CCSS.1.OA.D.7

CCSS.1.OA.D.8

What number fills in the blank?
24 + ____ = 24

• 24
• 2
• 0

Tags

CCSS.1.OA.A.1

CCSS.1.OA.B.4

CCSS.1.OA.C.6

CCSS.1.OA.D.8

Name the property:

1 + (8 + 3) = (1 + 8) + 3

• Associative

• Commutative

• Identity

Tags

CCSS.1.OA.B.3

Which answer shows the commutative property of addition?

• 6 + 9 + 5 = 9 + 6 + 5

• (6 + 9) +5 = 6 + ( 9 + 5)

• 6 + 0 = 6

Tags

CCSS.1.OA.B.3

6 + 5 = 5 + 6

• commutative
• identity
• associative

Tags

CCSS.1.OA.B.3

(9 + 4 ) + 5 = 9 + (4 + 5)

• commutative
• identity
• associative

Tags

CCSS.1.OA.B.3

7 + 0 = 7

• commutative
• identity
• associative

Tags

CCSS.1.OA.B.3

CCSS.1.OA.D.7