Matchstick puzzles challenge your logical thinking and ability to spot subtle changes that make all the difference. These brain teasers are great for enhancing problem-solving skills, and today, we have a tricky one for you. Can you correct an incorrect equation by moving just one matchstick?
The Puzzle: A Mathematical Mistake
Take a look at this equation:
93 – 9 + 26 – 2
At first glance, it seems like a normal mathematical expression, but if you calculate the result:
Spot the difference challenge: race against the clock! Find the 3 subtle changes in these nearly identical horse and rider images in under 9 seconds!
93 – 9 = 84
84 + 26 = 110
110 – 2 = 108
Since there is no equal sign, the equation is incomplete and incorrect. But what if a single matchstick could fix it?
The Challenge: Fix It with One Move
Your task is to adjust this equation using only one matchstick. You cannot add or remove an extra matchstick—just shift one to a new location to create a valid equation.
Take a close look at the numbers and symbols. Can you spot where a small change could make a big difference?
Common Mistakes People Make
Before revealing the solution, here are some common errors that people make when solving matchstick puzzles:
1. Focusing Only on the Numbers: Many people try to change the digits without considering that adjusting an operator might be the key.
2. Trying to Move More Than One Matchstick: The puzzle clearly states that only one matchstick can be moved. If your solution requires more than one move, think again.
3. Overcomplicating the Change: Sometimes, the simplest change is the right one. If your solution feels too complex, take a step back and reassess.
Take Another Look Before Checking the Answer
Before revealing the solution, try once more to find the matchstick that needs to be moved. Have you spotted it yet?
The Solution: The Corrected Equation
The trick lies in modifying both a number and an operator. Here’s how to solve the puzzle:
1. Remove the left vertical matchstick from the first number 9.
2. Place it vertically below the first minus sign.
This changes:
1. The 9 becomes a 3.
2. The minus sign (-) becomes an equals sign (=).
The corrected equation is:
33 = 9 + 26 – 2
Conclusion: A Simple Yet Clever Solution
By moving just one matchstick, we transformed an incorrect equation into a correct one. This puzzle is an excellent example of how small details can completely change the outcome.
Did you manage to solve it without looking at the answer? If so, congratulations! If not, don’t worry—these puzzles are designed to challenge your thinking. Share this puzzle with your friends and see if they can figure it out!
