May 21 (UPI) --An 11-year-old Florida girl earned a Guinness World Record for mental math when she solved a 12-digit multiplication problem without a calculator, pen or paper. Sanaa Hiremath, who was ...

SINGAPORE - When Hwa Chong Institution student Wee Sue Yin was four years old, instructors at her mental arithmetic enrichment class discovered she had an innate ability to understand numbers. By the ...

Hey Super Math Kids! Do you want to impress your friends and teachers with your amazing math skills? Imagine solving tricky multiplication problems in your head, without even needing a pencil or paper ...