The answer is conceptual knowledge.
Conceptual knowledge, especially in the mathematical context, involves understanding and interpreting the concepts and the relations between concepts. In short, it deals with our how we build ideas, relationships, connections, and most importantly, how we establish a sense on something. Examples of conceptual math knowledge include justifying an estimation, giving implications on given statistics, determining if you have matched an object with its correct volume formula, and much more.
The opposite of conceptual knowledge is procedural knowledge. Procedural knowledge deals with procedures, methods, or action sequences for answering a problem.
