Question

Jose solved the following problem using the work shown. Which property did he not use?

19 + (1 + 0)
= (19 + 1) + 0
= 20 + 0
= 20

identity property
associative property
commutative property

Answer 1

Answer:

c

Step-by-step explanation:

Answer 2

Step-by-step explanation:

associative property