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 ...
Sanaa Hiremath is like many 11-year-olds. She loves being outside or watching videos on her iPad, but here’s where she’s different: She can solve any math problem without using a calculator, pen, or ...
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