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)).
Video : Find The Missing Number – Hard Math Puzzle
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!
My Husband Is Simping over His Sister-in-Law Like Crazy – I Had Enough & Gave Him a Lesson of Respect He Will Never Forget
My husband always praises and compliments his sister-in-law like she is the most perfect human being. Even when she is not around, he talks about her. It makes me feel awful compared to her. One day, I taught him a lesson that nearly made him cry.
My husband, Jerry, and I have been married for almost four years. We have two beautiful children, and while our lives have been busy and chaotic, we’ve managed to keep our relationship strong.
Parents with their two kids outdoors | Source: FreePik
Besides the occasional arguments, there is one thing Jerry does that annoys me. I don’t know if my husband does this on purpose or if just has a low EQ, but he knows that it bothers me yet he still does it.
A woman annoyed at a man | Source: Pexels
He thinks the sun shines out of his sister-in-law’s bottom. He sees her as a goddess, the embodiment of perfection. Nothing she says or does is wrong. Whenever we visit her, Jerry talks about her for three to four days afterward like he is in a trance. He compliments LITERALLY EVERYTHING she does.
One would think he was cheating, but I am sure he is not. They don’t even talk besides the times we all get together. Is he in love with her? I have no idea, but he is definitely insensitive towards my feelings.
A man in admiration | Source: FreePik
His sister-in-law, Grace, is married to Jerry’s brother, Martin. She’s always been the picture-perfect homemaker: three kids, an immaculate house, homemade meals. She somehow always looks put together. She makes motherhood seem so easy.
I’ve always admired her but never felt the need to compete. However, Jerry’s constant praise of her started to wear me down. One of our recent visits got the best of me, so I decided to give my husband a taste of his own medicine.
A woman annoyed | Source: FreePik
We visited last weekend to see their new baby. I swear he was paying more attention to her and the baby than he ever did to me or any of our children. He complimented everything about her, from how she looked to how clean the house was to the delicious food.
A woman cleaning the house | Source: Pexels
“Wow, Grace! No one would ever think you had just given birth. You look incredible!” he said as we entered their home.
He even praised how she made the bread and how she managed to recall our favorite dishes and desserts. “You are a superwoman,” he said. “Definitely limited edition.” I literally had it with him and said “enough” a couple of times, but he just ignored me. Meanwhile, Grace just giggled and welcomed the compliments.
A woman baking | Source: Pexels
At one point, she noticed that I was no longer comfortable with Jerry’s admiration. She would try to instead compliment me, but it was like my husband heard nothing.
Even when we arrived home, the praising continued. “Honey, isn’t it amazing how Grace can manage three kids and keep their home so neat and clean? What does that woman take?!” I tried to change the topic several times and even showed him I was annoyed. Still, Jerry kept going on as if he couldn’t take a hint.
A man talking to a woman | Source: FreePik
I had enough. So, yesterday, when we went to his sister-in-law’s again, I decided to turn the tables. As soon as we arrived, I started laying it on thick. We had a barbecue on their patio and Martin was behind the grilling. “Isn’t Martin amazing?” I said to Jerry’s sister-in-law. “He helps out so much and hasn’t succumbed to the dad bod yet. How incredible.”
A woman smiling at a man | Source: FreePik
My husband looked at me, startled, while his sister-in-law’s eyes widened. But I wasn’t done. “He is so fit in his 40s!” True enough, Martin was in shape and regularly went to the gym. He also watched what he ate.
I continued, ignoring the increasingly tense atmosphere. As we were about to go home, I noticed their new patio decor and added it to my list of compliments. “Did you build those, Martin?” I asked. “Wow, you have golden hands. Jerry can’t even screw in a light bulb,” I quipped.
Home patio decor | Source: Pexels
My brother-in-law, Martin, looked content receiving the compliments, smiling modestly. But his wife, Grace, and my husband, Jerry, visibly looked awkward. Jerry’s face turned red, and he started fidgeting.
When I mentioned how great Martin’s hair was, Jerry, who had hair problems and was slowly becoming bald, suddenly ran to our car.
An upset man | Source: FreePik
I excused myself and went after him. I found him in our car, nearly crying. “Okay, I got it,” he said. “My brother is better than me in everything, so why did you marry me then?”
Jerry went on to say that he has always been compared to his brother. However, hearing it from me made it sting even more. He went on to accuse me of being in love with his brother, and I just laughed.
A couple fighting in the car | Source: Pexels
I took a deep breath and replied calmly, “I just did the same thing you’ve been doing to me for the last few years.”
“What do you mean?” he replied.
“I mean, you always praise Grace in front of my face. You’re so obsessed with that you talk about her even when we’re no longer in their home. You make her seem like a God! Maybe YOU are in love with her!”
A couple fighting in the car | Source: Pexels
He was silent for a moment, then drove home suddenly. He was quiet for the rest of the evening and slept much earlier than usual.
A man in tears | Source: Pexels
The next morning, he came to me with flowers and an apology. “I’m so sorry, Penelope,” he began. “I appreciated Grace’s housekeeping skills because it was hard for me to manage work and house chores. I wasn’t complimenting her in comparison to you. I was complimenting her in comparison to ME.”
A man holding a bouquet of roses | Source: FreePik
He added, “I have been feeling like a lousy husband when it comes to household work, and I just wish I could be more like her. But I hadn’t realized how my words affected you. I promise to become a better husband and pay you more attention.”
I looked at him, holding the bouquet, his eyes filled with remorse and tears about to fall. Part of me wanted to believe him, to forgive and move on. But another part of me was still hurt, still stinging from the months of feeling second best.
A thinking woman | Source: FreePik
The next few weeks were a mixture of cautious hope and lingering doubt. Jerry started making small changes. He was helping more around the house, planning surprise date nights, and most importantly, expressing genuine appreciation for everything I did.
Maybe everything he said was true, but the fact that my husband felt that way meant I did something or didn’t do something. Was I lacking in making him feel appreciated? Was he just that insensitive to my feelings?
Unlike Jerry, another husband has been making his wife feel wonderful. At 50, he began to change into the man he was when she fell in love.
My Husband Turned 50 and He Suddenly Became the Man I Married
My husband, Chris, and I have been married for over twenty years. He has always been a good man and a wonderful father to our kids. In the early days, he was incredibly affectionate, and couldn’t keep his hands off me. We had this electric chemistry that I thought would never fade.
A couple enjoying time on the internet | Source: Pexels
But, after the kids came along, things started to change. The affection, the romance, and even the playful flirting that we once had, all began to fade away. It got to the point where I felt like we were just roommates. I read about couples losing intimacy and romance after having children, but I didn’t think it would happen to me.
A woman on her laptop and her family sleeping on the bed | Source: Pexels
Then, two months ago, something completely unexpected happened. Out of the blue, Chris asked me if I wanted to go away for the weekend, just the two of us. It was such a shock that I almost didn’t believe it at first. We hadn’t done something like that in years. But I agreed, hoping it would rekindle some of what we had lost.
A couple sitting by the beach | Source: Pexels
When we got back home, his new attitude continued. He started losing weight and getting more toned. He looked better than he did when we got married, and I found it difficult to keep my hands off him. I couldn’t help but wonder what had caused this sudden transformation.
This work is inspired by real events and people, but it has been fictionalized for creative purposes. Names, characters, and details have been changed to protect privacy and enhance the narrative. Any resemblance to actual persons, living or dead, or actual events is purely coincidental and not intended by the author.
The author and publisher make no claims to the accuracy of events or the portrayal of characters and are not liable for any misinterpretation. This story is provided “as is,” and any opinions expressed are those of the characters and do not reflect the views of the author or publisher.
Leave a Reply