Niños mexicanos ganan torneo matemático con un ábaco y enorme agilidad mental

Metadata

• Date: 27/07/2017 21:44 (UTC)
• Credit: EFE
• Source: EFE
• Topic: Social issue » People » Infants
  Human interest » Award and prize
  Education
  
• Reference: 18009159628
• Relevance: Normal