This looks like an easy math problem… but it tricks almost everyone.
The question is:
100 − 100 ÷ 100 = ?
Most people rush and answer 0 or 1 without thinking twice. But the key here is remembering one simple rule: order of operations.
In math, division always comes before subtraction.
So instead of going left to right, you solve it like this:
First:
100 ÷ 100 = 1
Then:
100 − 1 = 99
That’s the correct answer.
This puzzle goes viral because it exposes a common mistake—people rely on instinct instead of rules. Our brains want to solve things quickly, so we often skip steps or forget basic principles.
It’s not about intelligence—it’s about attention.
Those who slow down and follow the correct order get it right immediately. Those who rush… fall into the trap.
So the real test isn’t math—it’s patience.
Did you get 99 on your first try? Or did your brain try to trick you? 👀