This may cause students to rely too much on online math-solving platforms. Rarely, solutions may be outdated or incorrect.

A young man lives in Manhattan near a subway express station. He is dating two women: one in Brooklyn; one in the Bronx. To visit the woman in Brooklyn he takes a train on the downtown side of the ...

A 12-year-old Chinese girl is causing a local buzz by teaching college-level math problems online. The South China Morning Post ... and she diligently records her problem-solving process in 3 to ...