Final answer:
The commutative property of addition states that the order in which numbers are added does not affect the sum. The identity property of addition states that adding zero to any number does not change its value. The associative property of addition states that the sum of three or more numbers is the same regardless of how the numbers are grouped.
Step-by-step explanation:
The property 7+4=4+7 is an example of the commutative property of addition. This property states that the order in which numbers are added does not affect the sum. In other words, you can add the numbers in any order and still get the same result.
The property x+0=x is an example of the identity property of addition. This property states that adding zero to any number does not change the value of the number. So, no matter what the value of x is, adding zero to it will always result in x.
The property (a+b)+c=a+(b+c) is an example of the associative property of addition. This property states that when adding three or more numbers, the sum is the same regardless of how the numbers are grouped. In other words, you can add the numbers in any order and still get the same result.