Properties of Addition and Subtraction

8 + (2 +1) = (8 + 2) + 1

• commutative

• identity

• associative

Tags

CCSS.1.OA.B.3

2 + 3 = 3 + 2

• commutative

• identity

• associative

Tags

CCSS.1.OA.B.3

What property does this show?

• commutative

• identity

• associative

Tags

CCSS.7.NS.A.1D

(3 + 8) + 4 = 3 + (8 + 4)

• commutative

• identity

• associative

Tags

CCSS.1.OA.B.3

6 + 0 = 6

• commutative

• identity

• associative

Tags

CCSS.1.OA.B.3

Which property says that addends can be flipped and you still get the same answer?

• Commutative

• Associative

• Identity

Tags

CCSS.1.OA.B.3

Which property says that any number with zero added to it is itself?

• Commutative

• Associative

• Identity

Tags

CCSS.1.OA.B.3

23+5=5+23   ____________

• Commutative

• Associative

• identity

• None of the above

Tags

CCSS.1.OA.B.3

60+40=60+40____________

• Commutaive

• Associative

• Identity

• None of the above

Tags

CCSS.1.OA.B.3

5. 9+(35+18)=(9+35)+18  __________

• Commutative

• Associative

• Identity

• Both A and C

Tags

CCSS.1.OA.B.3