That's a little bit off from a trillion dollars,” Sen. Jack Reed said. The difference between $1 trillion and $15 billion is $985 billion.

They found that declarative memory is correlated with math skills in second through fourth grade and is also predictive of ...

Students' perceptions of their mathematical identity can provide insight into why some lose motivation or underperform in ...

Meet Britain's 'smartest' siblings - who have a combined IQ of 314 and were accepted into Mensa at the age of 10 and 11.