In the expression (A + B) + C, which property allows for the regrouping of terms?

The property that allows for the regrouping of terms in the expression (A + B) + C is the Associative Property. This property states that when adding or multiplying numbers, the way in which the numbers are grouped does not change the result. In this case, the expression can also be rearranged as A + (B + C), and the sum remains the same regardless of how the terms are grouped. This grouping flexibility is crucial in simplifying expressions or solving equations, allowing for different combinations to be evaluated without altering the outcome.

While other properties like the Identity Property relate to the presence of a neutral element in addition (0 for addition) or multiplication (1 for multiplication), the Commutative Property focuses on the order of the numbers rather than the grouping. The Distributive Property involves distributing a multiplication across an addition and is not applicable in this context of simple addition grouping.