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!
Tragic Loss of Parents of Six During First Family Vacation
While on their first family vacation in Florida, six-time parents Brian Warter, 51, and Erica Wishart, 48, encountered an unbelievable tragedy.
On June 20, a tragic event happened when they were swimming off Hutchinson Island with two of their kids. Brian and Erica were left to the mercy of the strong ocean currents, even though the adolescents were able to rescue themselves.
Rescue efforts were started as soon as emergency personnel arrived. But despite everything they did, Brian and Erica were unfortunately declared dead at a local hospital, unable to be saved.
The water conditions were extremely dangerous on the day the couple perished. Red flags were flown along the beach, according to Cory Pippen of Martin County Fire Rescue, to warn swimmers of the hazardous riptide conditions. These flags are intended to alert beachgoers to possible aquatic dangers, like powerful rip currents.
After more than a year of dating, Brian and Erica got engaged. According to CBS 12 News, they intended to wed once their kids graduated from college. The family had been looking forward to this much-needed vacation for a long time. They took their kids along.
Brian’s father, Larry Warter, put their joy into words when he said, “They were so thrilled, they couldn’t see straight about going down.” It had never happened before. The experiment was this one. All six of their children were born together. It had taken them more than a month to plan.”
The overwhelming support that Brian’s family received from friends and relatives as well as the community left them in shock. Larry Warter conveyed his appreciation by saying, “Offers of assistance and other things have poured in.” We didn’t realize that we weren’t experiencing this alone.
A GoFundMe website was created in the couple’s memory, and Wayne Sallurday wrote a moving ode to Erica on it. He praised her as a remarkable individual, a devoted teacher, a caring mother, and someone who occasionally volunteered at her neighborhood church. He underlined that Erica was among the kindest people he had ever met.
Important information about rip currents is provided by the National Weather Service, which emphasizes that although they do not drag swimmers underwater, they can swiftly wear them out. In these kinds of situations, maintaining composure is essential.
It is advised on the website that swimming against a rip current will simply sap your energy, which is necessary for survival and escape. Avoid attempting to swim straight up to the coast. Swim parallel to the coast until you are no longer pulled by the current. Swim at an angle away from the current and toward the shore once you are free of its pull. Additionally, the service exhorts swimmers to always swim in pairs and to follow the maxim “If in doubt, don’t go out!”
This terrible incident serves as a somber reminder of the risks presented by rip currents and the importance of listening to safety advisories when swimming. Peace be with Brian and Erica.
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