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!
Animal Rescued from the Cold Turns Out to Be a Hairless Raccoon!
For animals, fur is more than simply a stylish accessory—it keeps them warm in the winter months. It also contributes to their distinct look. However, did you know that some animals could look drastically different when they are completely bald?
After being saved, an amazing creature that seemed like a hairless cat turned out to be an exceptional and unusual hairless raccoon. Let’s explore the tale of this unusual creature and her amazing survival!
Hope for Wildlife, a charitable conservation group based in Nova Scotia, had an unexpected guest last month. During the bitterly cold winter, a couple in West Arichat found a shivering animal in their property. The animal seemed like a Sphynx cat at first, but it was actually a completely bald raccoon!
Without its distinctive fur pattern that resembles a mask, raccoons are difficult to distinguish. This small animal, a northern raccoon, is completely bald as a result of severe alopecia. Although balding raccoons have been seen before, according to Hope for Wildlife director Hope Swinimer, this particular raccoon’s condition was the worst. It’s merely tufts of fur around the feet, ankles, and nose, she said. This situation is serious.
The raccoon was named Rufus, after the character from the show Kim Possible who was a naked mole rat, even though it was a female. The precise reason behind Rufus’ hair loss is still unknown. According to the rescue group, she might have an autoimmune disease that is harming her hair follicles. Since her skin seemed healthy, they ruled out conditions including parasites, mange, and fungal illnesses.
Raccoons depend on their fur to keep warm and shield them from the weather. The fact that Rufus avoided frostbite or worse throughout the hard winter without fur astounded the rescuers.
“We’re pretty amazed that this little lady survived the winter without fur and without getting frostbite or worse,” they gushed on Facebook. They went on to talk about Rufus’ lively attitude and said that her own willpower was the reason she was able to survive. Despite her initial state of debilitation, she eventually began to exhibit indications of recovery, developing resilience and strength.
Rufus might end up staying at the shelter permanently given the conditions. She’ll have a dedicated habitat with an outside area she can crawl into to be warm. In addition, the environment will provide conveniences like nesting boxes and hammocks.
This amazing hairless raccoon has us completely enthralled! We are happy that Rufus was discovered and is finally getting the attention she needs. It’s amazing how she was able to live in the wild for such a long time.Please tell people about this amazing story if you love animals!
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