At first glance, this math problem looks incredibly simple:
1 + 2 × 3 − 4 + 5
Most people solve it instantly in their head… and that’s exactly where the mistake happens.
Because when something looks easy, your brain tries to take shortcuts.
Instead of following the correct order, it rushes through the calculation — and that leads to the wrong answer more often than you’d expect.
The key detail here is something you probably learned years ago… but rarely think about anymore.
It’s called order of operations.
And this single rule completely changes the outcome.
Before you rush to answer, take a second look.
Are you solving it step by step…
Or just going left to right?
The Answer goes like this:
1 + 2 × 3 − 4 + 5
→ 2 × 3 = 6
→ 1 + 6 − 4 + 5
→ 7 − 4 + 5
→ 3 + 5
→ 8 ✅
