Sometimes in mental arithmetic, calculations are done in a different order because the numbers are more "convenient." For example,
consider the following calculations:
13.2.5 = 26.5 = 130
and
calculations. However, the
13.2.5 = 13 - 10 = 130
The first calculation was performed left-to-right, according to the standard rule for several multiplicati
second calculation is much simpler because it was done in a different order.
Which of the following mathematical properties allows us to do this?
The associative property of multiplication
The commutative property of addition
The associative property of addition
The commutative property of multiplication