Mental math's shortcut—pupil dilation suggests people start solving before all numbers are in

People often solve simple arithmetic problems, such as basic addition, subtraction, multiplication or division, in their ...

So you made a math mistake when you left a tip — here's what to do

When the tip and total don’t match, restaurants have to make a call. Here’s how those decisions usually play out.
The 74

The Graduation Gap: When Students Earn a High School Diploma But Still Can’t Do Math

Aldeman: Nationwide, states' high school graduation rates far exceed the percentage of their students who are proficient in ...