This study examined Korean second and third graders' understanding of multidigit addition and subtraction and particularly their ability to explain the trading required when a column sum of the ...

The Audi E5 Sportback (hereafter referred to as "Audi E5") provides a clear footnote to this question with its achievement of ...

KISSIMMEE, Fla. — While most high school students spend their summer relaxing or working in retail, 17-year-old Melinee Patayya is spending hers behind the teller line at Addition Financial’s ...

China laser hits the Moon in daylight at 130,000 km, enabling 24/7 lunar navigation, precise tracking, and a future-ready lunar GPS network.