Viral Math Problem Sparks Debate: Do You Know the Order of Operations?

A mathematical puzzle presented as '100 – 50 ÷ 5 × 2 = ?' has taken social media by storm, dividing users and igniting fierce debate over its solution. The challenge, designed to be solved within 30 seconds, tests basic arithmetic skills but often trips up those who neglect a fundamental mathematical principle: the order of operations.

The key to unlocking the correct answer lies in adhering to the hierarchy of operations, commonly known by acronyms like PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction) or BODMAS. Ignoring this established sequence leads to a cascade of incorrect results, transforming a straightforward calculation into a perplexing mental hurdle. Many users incorrectly perform subtraction first, or fail to prioritize multiplication and division before subtraction.

The correct method involves first addressing the division and multiplication from left to right. Thus, 50 divided by 5 equals 10, and that result multiplied by 2 yields 20. Only then is the subtraction performed: 100 minus 20 equals 80. This step-by-step process ensures accuracy and demonstrates the critical role of mathematical conventions.

Beyond the viral challenge, engaging with such mental exercises offers significant cognitive advantages. Research from Princeton University suggests that practicing mathematical calculations strengthens brain areas associated with logic, reasoning, and memory. These benefits extend to improved decision-making capabilities, making mental arithmetic a valuable tool for daily cognitive function. LA NACION's LN Juegos platform offers a variety of such challenges, including crosswords, Sudoku, and trivia, to help users sharpen their minds.