Question

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

Answer 1

The commutative property of multiplication allows us to perform calculations in a different order.

Step-by-step explanation:

The property that allows us to perform calculations in a different order is the commutative property of multiplication. This property states that changing the order of the numbers being multiplied does not affect the result. For example, 2 x 3 is the same as 3 x 2, which both equal 6. By applying the commutative property, we can choose the order of multiplication that is more convenient for mental calculations.

Answer 2

(a×b)×c=a×(b×c)

This means that multiplication is associative.

Answer: The associative property of multiplication