Final answer:
The property used in 5x1=1x5 is the Commutative Property of Multiplication, which states that the order of multiplication does not affect the result.
Step-by-step explanation:
The property used in the equation 5 X 1 = 1 X 5 is called the Commutative Property of Multiplication. This property states that the order in which multiplication is applied does not change the product. So, multiplying 5 by 1 is the same as multiplying 1 by 5, both will give the same result. For example, 3 X 4 = 12 is the same as 4 X 3 = 12. Or in other words, 'a X b' always equals 'b X a' illustrating the Commutative Property of Multiplication.
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