At first glance, this math puzzle seems extremely simple.
The numbers are basic.
The equation is short.
And most people feel confident enough to answer it in just a few seconds.
But that confidence is exactly what makes this riddle so deceptive.
Here’s the challenge:
90 − 10 ÷ 2 + 8 = ?
Try to solve it in your head before checking the answer.
The Common Mistake
Many people rush and calculate from left to right.
They think:
90 − 10 = 80
80 ÷ 2 = 40
40 + 8 = 48
So they conclude:
48
But that answer is incorrect.
The issue isn’t with the math itself.
The mistake comes from ignoring the order of operations.
Remember the Rule
In math, you don’t always solve expressions from left to right.
You must follow the correct order of operations.
Division and multiplication always come before addition and subtraction.
So in this expression:
90 − 10 ÷ 2 + 8
You must handle the division first.
Step-by-Step Solution
Start with:
10 ÷ 2 = 5
Now rewrite the equation:
90 − 5 + 8
Then solve from left to right:
90 − 5 = 85
85 + 8 = 93
The Correct Answer
✅ 93
Why This Puzzle Tricks So Many People
This riddle isn’t really testing your ability to add, subtract, or divide.
It’s testing whether you remember one of the most important rules in basic math.
Because the numbers look easy, people tend to rush.
And when they rush, they solve everything in order as it appears.
That’s why so many end up with the wrong answer.
Final Question
Did you get 93 on your first try?
Or did this tricky little equation catch you off guard?
