Properties of Addition

9 + 0 = 9

• Commutative

• Identity

• Associative

2 + 3 = 5

3 + 2= 5

• Commutative

• Identity

• Associative

( 6 + 7 ) + 8 = 13 + 8 =21

6 + (7 + 8) = 6 + 15 = 21

• Commutative

• Identity

• Associative

150 + 0 = 150

• Commutative

• Identity

• Associative

5 + 1 = 6

1 + 5 = 6

• Commutative

• Identity

• Associative