Peruvian news outlet Mag published a viral mathematical challenge asking readers to solve the equation (18x9)6+36÷6 within eight seconds on August 22, 2026.
According to real time writer Marcelo López Chavez, most participants fail to calculate the correct result inside the allotted time frame. He stated that maintaining concentration and applying basic arithmetic rules learned in school is essential to finding the solution.
López Chavez noted that the eight second countdown presents the primary difficulty for participants trying to test their mental agility. He suggested using the puzzle for personal entertainment or competing against family members and friends to see who can reason most quickly.
Step by step breakdown of the equation
The calculation relies on the PEMDAS rule, an acronym that outlines the standard order of mathematical operations: parentheses, exponents, multiplication, division, addition, and subtraction. Following this sequence prevents calculation errors when resolving combined operations.
To solve (18x9)6+36÷6, the first step requires completing the multiplication within the parentheses, which gives 18 multiplied by 9 equal to 162. Next, multiplying 162 by 6 yields 972.
The third step involves dividing 36 by 6 to obtain 6. Finally, adding 972 and 6 produces the definitive answer of 978.
Mag also highlighted several other timed math tests, including solving 1000−(225÷15)×28+75 in eight seconds, completing (135−55)÷4+25×3 in under eight seconds, and calculating 450÷(25−10)+16×3 in seconds.
Importance of procedural mathematical reasoning
López Chavez explained that requiring someone to detail the steps of a math exercise forces them to organize their thoughts. This procedural clarity enables both teachers and students to identify which mathematical concepts are understood and which require further instruction.
The outlet indicated that regular practice with arithmetic brain teasers helps keep the mind active during free time while improving quick reasoning in everyday situations like adding, subtracting, multiplying, and dividing.
Background of the author and publication
López Chavez holds a journalism degree from Jaime Bausate y Meza University, a private institution in Lima, Peru. He possesses two years of experience in digital journalism and currently works on viral content and real time reporting for Mag.
Mag operates as the digital lifestyle and entertainment brand of El Comercio, Peru’s daily national newspaper published by Empresa Editora El Comercio in Lima. Readers seeking additional arithmetic challenges can access more exercises via the link provided in the original publication.
