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!
At the age of 4, she garnered the title “the most beautiful girl in the world” – Here’s how she looks at 20 years old
In a world where every child possesses a unique kind of beauty, there are some whose allure is so enchanting that they effortlessly claim the spotlight as the most beautiful children in the world. Thylane, a young girl whose mere presence stole the hearts of many, serves as a prime example of such captivating charm.
Right from her earliest days, Thylane’s distinctive grey eyes and curly locks cast a spell on all who beheld her. Even in her toddler years, her arresting features caught the attention of modeling scouts eager to work with her.
While countless individuals spend years navigating the complex terrain of the modeling world, striving to secure coveted roles in fashion shows, Thylane’s path unfolded with remarkable ease, her innate beauty acting as a key to unlock doors of opportunity.
By the tender age of 10, Thylane had already claimed the title of the world’s most beautiful child. She stood out among her peers as one of the rare few to grace the illustrious pages of Vogue and adorn the covers of esteemed magazines.
Yet, amidst the acclaim and adoration, Thylane’s family found themselves under scrutiny for introducing her to the world of modeling at such a young age. Many critics argued that instead of being thrust into the spotlight of photoshoots and fashion events, Thylane should have been free to revel in the joys of childhood, spending time with friends and frolicking outdoors like any other 10-year-old.
However, unmoved by the naysayers, Thylane’s parents stood firm in their convictions, steadfastly defending their choices in raising their daughter.
As Thylane’s star continued to rise, she ventured into the realm of acting, spurred on by the interest of numerous producers eager to collaborate with her.
After a brief foray into the world of cinema, Thylane found herself drawn back to her roots in the fashion and beauty industry once more.
Now a blossomed young woman, recent photographs depict Thylane alongside her beau amidst the picturesque landscapes of the south of France. The images captured during their romantic getaway reveal a deep and abiding affection between them, a testament to the love they share.
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