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.
Video : Only 1% of people pass this logic test
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!
Single Mom of Four Buys Used Car, Owner Tells Her to Look In Trunk When She Gets Home — Story of the Day

A single mother of four young children decided to buy a used car to get to work. The car’s old owner asked her to open the trunk when she got home. What she finds in the trunk would be life-changing.Jennifer was a single mother of four young kids after her husband Adam left when he found out she was pregnant with their fourth child. “Another child to feed? No way! I’ve had enough!” he said one day, leaving their trailer and filing for divorce. Jennifer was devastated. She and Adam did not plan the pregnancy, but she thought she would have his support through such a challenging time, especially since they were already facing financial difficulties at the time.After their separation, Adam stopped giving her money for their children.He claimed he had no job and that no one would take him in because he did not graduate college. Shortly after giving birth, Jennifer had no choice but to look for a job, as she was running short on cash for food, diapers, and milk. Jennifer would walk through strips of restaurants and shops, only to be rejected by owners because she had four small children.”It’s difficult to hire mothers with young children because something always comes up. It’s either your child is sick, or you have no one to leave them with, so you have to miss work. I’m sorry, it’s too much for us to handle,” one employer outright told her. As no one in their neighborhood would take her in for a job, Jennifer started searching in a nearby city. With the bit of money she had left,she took a cab ride and asked her neighbors to look after her children for the afternoon.When she got there, she saw an opening for a housekeeping job at a local hotel. She walked in, applied, and was hired immediately. “We badly need staff around here, especially with the summer season. We will be fully booked in a couple of weeks,” the HR manager told her.Desperate for a job, Jennifer accepted it even if it meant traveling to a different city every day. She thanked the HR manager and made her way back home, where she told her kids she had finally landed a job. After spending almost $30 on cab fare, Jennifer realized she couldn’t afford to commute to work every day. It would be better for her to take her own car, but she had no money for one. She realized her best hope was to purchase a second-hand car.She found one but she wondered whether the owner would agree to sell it for a lower price. “By any chance, would you be able to give me this car for $5000? You see, I’m a single mom of four,and it’s been difficult for me to earn money. I was hoping to get a car to take a job in a nearby city,” she admitted.When the owner found out that she was raising four young children on her own, he agreed to sell the car for $5000. “If you can buy the car by tomorrow, I can give this to you for $5000,” he told her. Jennifer couldn’t be more grateful to the owner for agreeing to sell at a lower price. She took her chances and applied for a loan at the bank so she could get the car the following day. Unfortunately, because of her bad credit, the loan was rejected immediately.As she was running out of options, Jennifer thought deeply about what to do next. She could not move to a new city because her eldest child, Ethan, had just started school near the trailer park they lived in. Rent in the nearby city was also a lot more expensive, and she wouldn’t be able to take the trailer with her. She really needed a car to take her to and from work and fetch her children from school and the daycare.Then she remembered the family heirloom her late mother had left her – a gold chain necklace that had been in her family for generations. She teared up at the thought of having to sell it so she could buy a car, but she desperately needed it to provide for her children in the long run.Jennifer took the gold chain necklace from her trinket box and walked toward a nearby pawnshop. “I’m sorry, mom. I really need to do this right now,” she said aloud. When she got to the pawnshop, the necklace was valued at $5500. Jennifer was delighted. The amount was enough to buy the car and she would have some left for their daily needs. The following day, she went back to the used car dealership and handed the owner an envelope filled with $5000. “Thank you for agreeing to sell this to me, sir. You have no idea how much this will help my children and I,” she said and handed the man the envelope.The owner, who introduced himself as Jeff, smiled. “Congratulations on your car. This is an excellent purchase,” he told her. While Jennifer signed the paperwork for the purchase, Jeff discreetly placed something in the trunk of the car, and ss Jennifer prepared to drive home, he called out after her. “By the way, check the car’s trunk when you get home. I left something for your children inside,” he said, waving at Jennifer before she drove away. Since buying the car, Jennifer became busy commuting to work and taking her children to school and daycare that she completely forgot about checking the trunk, until she found a note in the car’s glove compartment.“I hope you and your children liked the gift I left inside the trunk. May it be of great help to you.” Surprised, she decided to open the trunk to search for the gift.At first, Jennifer was confused when she saw nothing but a white envelope on one side of the trunk. Then she realized it was the same white envelope she used to put her payment for the car. She opened it and saw her $5000 untouched. Jennifer couldn’t help but cry at that moment, surprised at the man’s kind gesture. She drove straight to the used car dealership after work, where she thanked Jeff for his generosity. “The world throws challenges at you, and it’s up to you to either rise from these challenges or succumb to them. I am proud of you for staying strong for your children, and I thought you could use the money more than I. Just don’t forget to pay it forward,” Jeff told her
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