You pay for a latte with money from your Starbucks app, so your bank account balance doesn’t change. That means the coffee was basically free, right? This is just one example of “girl math,” a trend ...

BALTIMORE -- A new personal finance trend has TikTok users recommending humorous new ways to rethink their spending habits. We've all justified unnecessary purchases before, but now social media has ...

I offer to pay you $200 in one year if you give me $190 today. Good deal or bad deal? It’s the kind of math problem you might encounter in real life, as opposed to, say, whether the cosecant of a ...

Two students in Danielle Adler’s kindergarten class at Marcus Hook Elementary School in Marcus Hook, Pa., prepare for an addition problem. Credit: Holly Korbey for The Hechinger Report The Hechinger ...