Humans exhibit exclusive complex arithmetic abilities, which are often attributed to the exceptional enlargement of humans’ neocortical regions during evolution. Scientific investigations that examine ...

Approximate strategies are crucial in daily human life. The studies on the “difficulty effect” seen in approximate complex arithmetic have long been neglected. Here, we aimed to explore the brain ...

When my children were in grade school, I never let them do their math homework with calculators. They had to work out the numbers in their head or with pencil and paper. I kept thinking about my ...