Have you ever come across a math problem that seems easy at first glance, only to realize that most people get it wrong? The equation 9 – 9 ÷ 9 + 9 – 9 ÷ 9 = ? is one such puzzle that confuses many. It looks simple, but if you’re not careful, you might end up with the wrong answer.
Are you ready to put your math skills to the test? Take a moment to solve it before reading ahead. Think you got it right? Let’s find out!
Why Do So Many People Get This Wrong?

At first glance, this equation appears straightforward. However, small details in mathematical rules trip people up. Here are some common mistakes that lead to the wrong answer:
- Ignoring the Order of Operations (PEMDAS/BODMAS) – Many people solve the problem from left to right without following the correct order of operations.
- Misplacing Parentheses (Even When They Aren’t Written) – Some assume parentheses where there are none, changing how they approach division and subtraction.
- Rushing Through the Calculation – The problem is designed to look easy, so people tend to solve it quickly and overlook critical steps.
So, what’s the correct approach? Let’s break it down step by step.
Step-by-Step Solution
To solve this equation correctly, we must follow the order of operations. The most commonly used rule is PEMDAS (Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)).
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The given equation:
9 – 9 ÷ 9 + 9 – 9 ÷ 9
Step 1: Solve the Division First
According to PEMDAS, division comes before subtraction and addition. So, let’s divide first:
- 9÷9=19 ÷ 9 = 19÷9=1
- 9÷9=19 ÷ 9 = 19÷9=1
Now, substitute these values back into the equation:
9 – 1 + 9 – 1
Step 2: Perform Addition and Subtraction from Left to Right
Now, we calculate in order from left to right:
- 9 – 1 = 8
- 8 + 9 = 17
- 17 – 1 = 16
So, the correct answer is: 16
Common Incorrect Answers and Why They Happen
Many people arrive at incorrect answers because they don’t follow the correct order of operations. Here are some of the most common mistakes:
- Answer: 0 – This happens when someone groups all the numbers together without following PEMDAS, incorrectly simplifying the problem as:
9−9−9+9−9=09 – 9 – 9 + 9 – 9 = 09−9−9+9−9=0 - Answer: 1 – Some mistakenly subtract 9 from itself first before dividing, leading to:
(9−9)÷9+9−9÷9=1(9 – 9) ÷ 9 + 9 – 9 ÷ 9 = 1(9−9)÷9+9−9÷9=1
These errors reinforce the importance of following the correct mathematical rules step by step.
Why Understanding Order of Operations Matters
You might wonder—why does it even matter? Well, mathematics is built on logical rules, and following them correctly ensures we get consistent, accurate answers. The order of operations is used in everything from programming to engineering to everyday calculations.
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Think about it this way: If a recipe tells you to bake a cake at 350°F for 30 minutes before adding frosting, you wouldn’t reverse the steps, right? Math works the same way—sequence matters!
Put Your Skills to the Test
Did you get the correct answer? Share your response in the comments! Were you surprised by how easy it was to make a mistake?
If you enjoy solving puzzles like this, challenge your friends and see if they can get it right! Math riddles help improve problem-solving skills and boost logical thinking.
Want more brain teasers like this? Keep testing yourself with tricky puzzles and improve your critical thinking skills! Who knows? The next time you see a math problem like this, you might be among the 10% who get it right on the first try!
6-Year-Old Boy Dies And Leaves Blue Stain On Carpet: Years Later, Mom Makes Heart-Wrenching Discovery

Every day, moms have a lot on their plates.
Managing multiple responsibilities throughout the day, like cleaning their children’s sticky hands and faces, folding laundry, ensuring they eat breakfast and lunch, and getting them ready for school, leaves parents with a lot on their plates and little time for relaxation.

No matter how hard they try, there will always be some sort of mishap—such as a toy you trip over, a glass of milk that gets knocked over, or a stain somewhere—waiting around the corner.
The luxury of taking a quick shower before going to bed or spending some alone time is something that many mothers cannot afford.
A mother who has seen it all, Heather Duckworth, recently wrote a piece in which she touched on some of the things we take for granted as parents.
A crucial component of that process is the mess that children make as they transform before our own eyes into the people we’ve always thought they’ll become.
It’s crucial to keep in mind that our kids will use the messes we cleaned up when they were adults as the greatest evidence to the upbringing we provided for them, so it’s worthwhile to make an effort to find happiness even in the middle of turmoil.
Unfortunately, not every woman gets to witness the chaos and disarray that kids bring about.
Not all parents are able to experience the happiness that children bring into their life, either.
Many new and expecting mothers connected with Heather’s widely shared post , “The Blue Stain.”

As Heather washed the grout her daughter had created with the slime, her heart began to race as she recalled the catastrophe she had to clean up all those years prior.
This mother would think, “My hands were full, but so was my heart,” after a demanding day of chasing after her two-year-old triplets and her four-year-old elder brother, picking up toys, and making sure no one got hurt in the mountains of laundry she was unable to finish that day.
Heather and her two sons danced to the radio as they cleaned up the playroom before calling it a night.
It was the last time they would laugh so hard for a while, no one could have anticipated.
She was about to go to sleep herself when she heard one of the boys say, “Uh, Oh,” and she noticed the enormous blue stain that would follow her about for the rest of her life.
One of the triplets’ pens exploded in his hand, splattering ink all over the place. Blue pajamas, hands, and face gave the appearance that the little child was a smurf.
Heather became enraged and felt like a lousy mother as she watched.
Although she hadn’t been upset with her son, she did blame herself since she’d placed the pen in a place where kids could readily get to it. She gave in to her emotions.
“When I noticed blue splatters all over the floor and a large pool of ink seeping into our brand-new carpet, I panicked. My husband had been doing the dishes, so I hurriedly shouted for him to come help me. My spouse began cleaning those vivid blue stains off of our carpet as soon as I got my son and took him to the toilet to clean him up. I was immediately upset.

Heather would often get angry and frustrated when she spotted the stain on the brand-new carpet. Up until the day it was eventually removed, the stain represented all the amazing experiences she shared with her sons.
A month after the little child spilled blue paint on the carpet, he was given a cancer diagnosis. Two years later, he passed away, leaving the stain as a reminder of their time together.
It remained in place, but now it served as a continual reminder of my kid. It served as a continual reminder of my annoyance at something so little and insignificant in the grand scheme of things.

The blue stain served as a continual reminder that although life is messy, it is still worthwhile. a persistent prompt to stop worrying about the little things. a continual reminder that people matter more than “things.” a continuous reminder that mishaps do occur. a continual reminder to hold fast to what is important and let go of the trivial things.
She attempted to hide the bright blue stain with the furniture, but each time she tidied the space, it was there, glaring back at her, a constant reminder of her loss and the grief she was still experiencing.

The purpose of Heather’s narrative is to serve as a reminder of how frequently we forget to see the small things in life that bring us purpose and take life for granted. She feels compelled to tell all the mothers out there that the toys scattered around and the filthy clothes are what actually provide their homes a feeling of security and comfort for their family.
As Heather puts it, those messes caused by the people we care about the most are what give our lives meaning because the day will come when we will truly miss those times.”If it meant I could spend one more day with my son, I would gladly have a million blue ink stains on my carpet.”

She gives mothers this advice: try not to become so engrossed in the world that you lose out on spending valuable time with your children. Prioritize what really important in life since it’s too short to waste time cleaning stains!
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