Solve this---**Title:** Do the Math
**Problem Statement/Equation:** ? 25 ? 5 ? 9 ? 32 ? 8 = 4
**Instructions:**
Use five mathematical symbols (+, -, ×, ÷, √) to complete the equation.
Use symbol only once, and ignore the standard order of operations.
**Symbols Provided:** +, -, ×, ÷, √
**Source:** WORLD OF ENGINEERING
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Welcome to this mathematical puzzle! We have an equation with five blank spaces that need to be filled with mathematical symbols. The equation is: blank 25 blank 5 blank 9 blank 32 blank 8 equals 4. We have five symbols available: plus, minus, multiplication, division, and square root. Each symbol can only be used once, and we must ignore the standard order of operations, calculating from left to right instead.
Now let's find the solution! After trying different combinations, we discover that the answer is: square root of 25, plus 5, minus 9, times 32, divided by 8, equals 4. Let's verify this step by step, calculating from left to right. First, square root of 25 equals 5. Then 5 plus 5 equals 10. Next, 10 minus 9 equals 1. Then 1 times 32 equals 32. Finally, 32 divided by 8 equals 4, which matches our target!
Let's understand the strategy behind this solution. The key insight is to start with the square root to simplify 25 into 5. Then we use addition to build up the number, subtraction to reduce it, multiplication to create a larger intermediate result, and finally division to reach our target of 4. This demonstrates the importance of the left-to-right calculation rule, which ignores the standard order of operations. Without this rule, the multiplication and division would be calculated first, giving us a completely different result.
This is a perfect example of why following the given rules is crucial! If we used the standard order of operations instead of calculating left to right, we would get a completely different answer. With standard order, we would first calculate the square root of 25 to get 5, then multiply 9 times 32 to get 288, divide 288 by 8 to get 36, and finally calculate 5 plus 5 minus 36, which equals negative 26. That's nowhere near our target of 4! This demonstrates how important it is to follow the specific rule of ignoring standard order and calculating from left to right.
Congratulations! We have successfully solved this mathematical puzzle. The final answer is square root of 25, plus 5, minus 9, times 32, divided by 8, equals 4. This puzzle taught us several important lessons: always read the rules carefully, pay attention to special instructions like ignoring standard order of operations, and remember that mathematical puzzles often require creative thinking and systematic approach. We used all five symbols exactly once and followed the left-to-right calculation rule to reach our target of 4. Thank you for joining us in solving this engaging mathematical challenge!