A simple math problem, “reserved for geniuses,” leaves people perplexed.

What if a simple calculation sowed doubt? On social media, a banal equation has tricked thousands of people.

What if a simple calculation could sow doubt in the minds of thousands of people? On social media, a seemingly basic equation sparked a real debate. Some were certain of their answer… before realizing they were wrong. So, was it a trap or a simple oversight? You might be surprised by the answer.

This calculation that makes everyone doubt
Here’s the equation that’s driving the internet crazy:

3 × 3 − 3 ÷ 3 + 3

At first glance, nothing complicated. Yet, many fall into the trap by going too fast.

Some people read the expression from left to right without thinking it through. Result: an incorrect answer.

And that’s where everything happens.

Why do we make mistakes so easily?

The problem does not stem from the calculation itself, but from the method used.

When faced with a series of operations, our brain tends to go for the simplest solution: calculating in the order of reading.

But in mathematics, there is one essential rule to follow. And that’s what makes all the difference.

The rule you absolutely need to know
To avoid errors, a rule called order of operations (or BODMAS / PEMDAS depending on the country) is used.

It defines the order in which to perform the calculations:

Parentheses
Orders (powers)
Multiplication and division (from left to right)
Addition and subtraction (from left to right)
In other words, we don’t calculate everything in order… but according to a precise logic.
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