When the tip and total don’t match, restaurants have to make a call. Here’s how those decisions usually play out.

Multiplication and long division rarely get pep rallies. But Michaela Sicuranza, a 5th grade teacher at Sinking Springs Elementary, in York, Pa., thinks building an exciting, competitive identity ...

The employment future looks bright for people with strong math skills. But among the nation’s K-12 students, that represents a small and dwindling demographic. What’s to blame for students’ poor math ...