Both behavioral research and brain-imaging research show distinct differences in the way "exact" arithmetic and "approximate" arithmetic are processed. Exact arithmetic is information that is precise and follows specific rules and patterns such as multiplication tables or geometric formulas, and approximate arithmetic is a general comparison between numbers such as the comparisons of greater than or less than. Research shows that exact arithmetic is language-based and processed in the left inferior frontal lobe. Approximate arithmetic is processed much differently in a different part of the brain. Approximate arithmetic is processed in the bilateral areas of the parietal lobes. This part of the brain processes visual information to understand how objects are spatially related to each other, for example, understanding that 10 of something is more than two of something. This difference in brain function can create a difference in how we experience certain types of arithmetic. Approximate arithmetic can be experienced as intuitive and exact arithmetic experienced as recalled knowledge.