Samantha had to add this group of numbers (47 + 56 + 53), but she wanted to add them as quickly and as easily as possible. here is how she decided to add the numbers:
47 + 56 + 53 = (47 + 53) + 56 = 100 + 56 = 156.
which number property allowed her to add the numbers in this way?
the associative property of addition
the commutative property of addition
the identity property of addition