r * 1 = r is an example of what kind of property of multiplication?

What property is it?

The expression "r * 1 = r" is an example of the identity property of multiplication. The identity property states that when any number (in this case, 'r') is multiplied by 1, the result is equal to the original number. This property works for any value of 'r'. To understand this property further, let's break down the steps to solve the expression:

Step 1: Start with the number 'r'.
Step 2: Multiply 'r' by 1.
Step 3: The product of 'r' and 1 is 'r' itself.

So, by applying the identity property of multiplication, we have shown that the expression "r * 1 = r" holds true.

http://www.aaamath.com/pro74bx2.htm

Thank you

You're welcome.