Hey Quiz fans! Ready for a super fun brain workout today? Our friendly professor has cooked up another intriguing math challenge that’s sure to get your gears turning. At first glance, it might look simple, but there’s a little twist that many often overlook!
Take a peek at this equation:
9 + 15 − 30 × 2
What’s your answer? Many people jump straight to solving from left to right, but that’s where the trick lies! To truly crack the code and find the correct solution, we need to remember a fundamental rule in mathematics: the order of operations.
Understanding the Order of Operations: PEMDAS/BODMAS
When you see an equation with multiple operations (like addition, subtraction, multiplication, and division), you can’t just solve them in any order. There’s a specific sequence you must follow to get the correct answer. This sequence is commonly known by acronyms like PEMDAS or BODMAS.
- Parentheses (or Brackets)
- Exponents (or Orders)
- Multiplication and Division (from left to right)
- Addition and Subtraction (from left to right)
Remembering this order is crucial for solving math problems correctly, especially those designed to test your attention to detail!
Let’s Solve Our Math Challenge Step-by-Step
Now, let’s apply the power of PEMDAS to our brain teaser: 9 + 15 − 30 × 2
Step 1: Multiplication First!
According to PEMDAS, multiplication comes before addition and subtraction. So, our first task is to calculate the multiplication part of the equation:
30 × 2 = 60
Now, our equation looks like this: 9 + 15 − 60
Step 2: Addition and Subtraction (Left to Right)
With only addition and subtraction left, we simply work from left to right.
First, Addition:
9 + 15 = 24
Now the equation is: 24 − 60
Finally, Subtraction:
24 − 60 = -36
And there you have it! The correct mathematical answer to the challenge is -36.
The Trick Revealed!
If you were expecting a positive number or a simple single-digit answer, you might have been surprised! This math challenge is a classic
