Evin evaluated the product of 5x12 as 60 by finding 5x10 and adding it to 5x2. this is an example of what property?

5 * 12 = 60
  For this case we have:
  5 * (10 + 2)
  = 5 * 10 + 5 * 2
  = 50 + 10
  = 60
  It is an example of the commutative property of multiplication.
  We note that this is equivalent to:
  5 * (2 + 10)
  = 5 * 2 + 5 * 10
  = 10 + 50
  = 60
  
  Commutative property.