Hey there, number – crunching enthusiasts, brain – teaser lovers, and anyone up for a mental workout! Get ready to embark on an exhilarating journey into the captivating realm of math puzzles. These aren’t just ordinary arithmetic problems; they’re intricate challenges that blend logic, creativity, and a deep understanding of numbers to test your wits and push the boundaries of your mathematical prowess.
So, roll up your sleeves, fire up those brain cells, and let’s explore the fascinating universe of math puzzles together. Get ready to be intrigued, challenged, and amazed as you unlock the secrets hidden within these numerical mysteries!
Ready to see the answer?
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Answer：
- According to the order of arithmetic operations, calculate multiplication and division first：
In an arithmetic expression without parentheses, multiplication and division are calculated from left to right.- First, calculate the division: 20÷5=4, and the expression becomes 20−4×2.
- Then, calculate the multiplication: 4×2=8, and the expression becomes 20−8.
- Finally, calculate the subtraction：20−8=12.
So, 20−20÷5×2=12.
