Are you ready to challenge your brain with a fascinating math puzzle? At first glance, the equation in the image may look like a simple addition problem, but there’s a hidden pattern that makes it more complex than you think.
Take a moment to analyze the given equations:
- 9 + 2 = 711
- 14 + 6 = 820
- 17 + 11 = 628
- 12 + 3 = ???
Can you figure out the logic behind these numbers and find the correct answer? Give it a try before scrolling down for the solution!

Common Mistakes People Make When Solving This Puzzle
Many people approach this problem using traditional math rules. Since the equations involve addition, they naturally assume the answer follows basic arithmetic. However, these numbers don’t add up conventionally, leading to confusion.
Here are some common errors people make:
✔ Trying to use standard addition – When adding 9 + 2, the result should be 11, but the puzzle gives 711 instead. Clearly, something else is happening.
✔ Assuming a hidden multiplication or division – Some people think there’s a multiplication or division pattern involved, but that doesn’t explain all the numbers.
Video : if 2+9=711 then find 12+3=??? tricky number Puzzle with answer
✔ Overcomplicating the logic – Sometimes, the best approach is to look for a simple pattern instead of forcing complex mathematical operations.
If you’re stuck, don’t worry! Let’s break it down step by step and uncover the hidden pattern behind these numbers.
Step-by-Step Guide to Solving the Puzzle
To understand the logic behind these equations, let’s analyze how the numbers are structured.
Step 1: Look for a Pattern in the Results
Instead of performing normal addition, let’s break down each result:
- 9 + 2 = 711
- 14 + 6 = 820
- 17 + 11 = 628
Notice that each result consists of three digits. What could these numbers represent?
Step 2: Identify the Hidden Logic
Let’s analyze the relationship between the input numbers and the output:
- The first digit of the result seems to come from the sum of the two numbers.
- The last two digits of the result seem to come from the product of the two numbers.
Let’s verify this theory:
- 9 + 2 = 11, 9 × 2 = 18 → But the result is 711?
- Instead of 18, it looks like the product’s last two digits are considered.
- If we write 11 first, but take only the last two digits of 9 × 2 = 18, we get 711.
- 14 + 6 = 20, 14 × 6 = 84 → The result is 820.
- First part: Sum = 20
- Second part: Product = 84
- The final number is 820 (placing 20 first, followed by 84).
- 17 + 11 = 28, 17 × 11 = 187 → The result is 628.
- First part: Sum = 28
- Second part: Product = 187, taking the last two digits 87
- The final result is 628.
Step 3: Apply the Logic to the Missing Equation
Now, let’s use this pattern to solve 12 + 3 = ???
- Sum:
- 12 + 3 = 15
- Product:
- 12 × 3 = 36
- Final Answer:
- By following the discovered pattern, we place the sum first, followed by the last two digits of the product:
- 12 + 3 = 915
Final Answer: 915
So, the correct answer to the puzzle is 915!
Conclusion: Challenge Your Brain with More Puzzles
Did you figure out the pattern on your own, or did you need a hint? Either way, this puzzle is a great example of how thinking outside the box can help solve seemingly tricky problems.
Video : Math Puzzles With Answers Only Genius Can Answer
👉 Drop a comment below and let us know how long it took you to solve it!
👉 Share this puzzle with your friends and challenge them—can they solve it faster than you did?
👉 Try more brain teasers to improve your problem-solving skills and have fun while exercising your brain!
Math puzzles like these are excellent for boosting logical thinking and pattern recognition. Keep challenging yourself, and you’ll soon become a master at spotting hidden logic!
This precious little girl made her entrance into the world adorned with “polka dots”: Check out how stunning she is at the age of 8!

Rebecca Callaghan faced a challenging pregnancy in 2012 when doctors decided to induce labor early due to excess fluid around her baby.
It wasn’t until about an hour after Matilda was born that any issues were suspected. Initially, a large blue mark on her face and extending down her body was mistaken for a bruise. However, just 30 minutes later, doctors informed Rebecca and her husband that it was, in fact, a birthmark.
Two weeks postpartum, Matilda was diagnosed with Sturge-Weber syndrome, a rare neurological condition associated with skin abnormalities that can lead to paralysis, learning difficulties, and seizures.
Matilda’s health quickly deteriorated, necessitating her transfer to Alder Hey Children’s Hospital in Liverpool, England. The parents’ joy transformed into deep anxiety, as they feared they might lose their newborn. “We couldn’t travel with her because she was so sick. Watching her taken away, we were terrified we’d never see her again”, her father shared with the Daily Mail.
Adding to their worries, they discovered Matilda had two heart defects. Despite the grim prognosis, she displayed remarkable resilience, successfully undergoing surgery. She also began laser treatments to address her unusual birthmark, a process that could take up to 16 hours to fully fade.
“She receives treatments every two months. The laser leaves her skin red and covered in blisters, which eventually heal”, her father, Paul, explained in a 2016 interview. He recounted the misconceptions from others, stating: “People assume we’ve somehow harmed her”.
Although these treatments are painful, Matilda is a cheerful child. Sadly, many stare at her or make hurtful remarks, even asking if her parents had caused her birthmark by allowing her to burn herself. “They only see the surface and make judgments. I wish they could see beyond the mole to the beautiful person she is”, Paul lamented.
In addition to her birthmark, Matilda faces vision challenges and struggles to walk. Yet, with the help of specialized equipment, she has taken steps on her own.
Despite her struggles, Matilda remains upbeat and resilient. “She’s incredibly stubborn; she’ll do things her way or not at all!” her father noted, emphasizing that she always greets others with a smile. The family regularly confronts stares, insults, and teasing, but they remain proud of Matilda. “Despite everything, she’s thriving”, her father said.
Now nine years old, Matilda’s family recently shared an updated photo of her in her wheelchair in June 2019. They have set up a fundraising page to raise £5,000 for a new wheelchair, enabling Matilda to enjoy her favorite activity: spending time outdoors, away from crowds. “We want to help her continue doing what she loves”, the page states.
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