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# 15 Mind-Blowing Math Magic Tricks to Amaze Your Friends [2024]

Have you ever wanted to impress your friends with your math skills? Well, we’ve got just the thing for you! In this article, we’ll share 15 mind-blowing math magic tricks that will leave your friends in awe. From number tricks to calculations, these tricks are sure to make you the star of any gathering. So, get ready to unlock the secrets of math magic and become the life of the party!

## Quick Answer

Looking for some quick math magic tricks to amaze your friends? Here are 15 mind-blowing tricks that will leave them speechless:

- The 37 Trick: Choose a three-digit number with the same digits and divide it by the sum of its digits to always get 37.
- The 1089 Trick: Manipulate a chosen number to get the result 1089.
- The 15 Trick: Always get the number 15, regardless of the initial number chosen.
- The Age Guesser: Guess your friend’s age using a series of calculations.
- Quick Addition: Add two-digit numbers quickly using place value principles.
- The Number 8 Trick: Perform a series of calculations to always result in the number 8.
- The Number 2 Trick: Always get the number 2, regardless of the initial number chosen.
- The Shoe Size and Age Trick: Determine someone’s shoe size and age using a series of calculations.
- The Digit Trick: Get a number containing specific digits after a series of calculations.
- The Three-Digit Manipulation Trick: Manipulate a three-digit number to get a specific result.
- The Magic Square: Create a square where the sum of each row, column, and diagonal is the same.
- The Fibonacci Trick: Guess the number someone is thinking of using the Fibonacci sequence.
- The Mind Reader: Read your friend’s mind and guess their chosen number.
- The Calendar Trick: Determine the day of the week for any given date.
- The Multiplication Trick: Multiply any two-digit number by 11 mentally.

Now, let’s dive into each trick and learn how to perform them step by step!

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## Quick Tips and Facts

Before we get started, here are some quick tips and facts to keep in mind while performing these math magic tricks:

- Practice makes perfect! Make sure to practice each trick before performing it in front of your friends.
- Confidence is key. Act like you know exactly what you’re doing, even if you’re not 100% sure.
- Use misdirection to your advantage. While performing the trick, divert your friends’ attention away from the actual method.
- Don’t reveal the secret too soon. Keep your friends guessing and build up the suspense before revealing the trick.
- Have fun! Remember, the goal is to entertain and amaze your friends, so enjoy the process and let your personality shine.

Now, let’s explore the fascinating world of math magic tricks!

## Background: The Art of Math Magic

Math magic tricks combine the principles of mathematics with the art of illusion to create mind-boggling effects. These tricks often involve calculations, number patterns, and mathematical concepts that seem impossible to the untrained eye. By understanding the underlying math behind each trick, you can perform seemingly impossible feats and leave your friends wondering how you did it.

Math magic tricks have a long history and have been performed by magicians, mathematicians, and enthusiasts alike. They not only entertain but also help develop critical thinking skills, improve mental math abilities, and foster a love for mathematics. So, let’s dive into the world of math magic and discover the secrets behind these amazing tricks!

## 1. The 37 Trick

**Trick:** Choose a three-digit number with the same digits and divide it by the sum of its digits to always get 37.

**How to Perform:**

- Ask your friend to choose any three-digit number where all the digits are the same (e.g., 222, 555, 888).
- Multiply the chosen number by 73.
- Divide the result by the sum of the digits in the chosen number.
- The final result will always be 37!

**Example:**

Let’s say your friend chooses the number 444.

- Multiply 444 by 73: 444 * 73 = 32412
- Divide 32412 by the sum of the digits in 444 (4 + 4 + 4 = 12): 32412 / 12 = 2701

No matter which three-digit number your friend chooses, the result will always be 37!

**Pro Tip:** To make the trick more impressive, you can ask your friend to choose a four-digit number with the same digits and perform the same calculations. The result will still be 37!

## 2. The 1089 Trick

**Trick:** Manipulate a chosen number to get the result 1089.

**How to Perform:**

- Ask your friend to choose any three-digit number where the first and last digits are different (e.g., 123, 456, 789).
- Rearrange the digits to form a new number, both ascending and descending.
- Subtract the smaller number from the larger number.
- Reverse the result and add it to the original number.
- The final result will always be 1089!

**Example:**

Let’s say your friend chooses the number 456.

- Rearrange the digits to form a new number: 654 (larger number) and 456 (smaller number).
- Subtract the smaller number from the larger number: 654 – 456 = 198
- Reverse the result: 891
- Add the reversed result to the original number: 891 + 456 = 1347

No matter which three-digit number your friend chooses, the final result will always be 1089!

**Pro Tip:** To make the trick more impressive, you can ask your friend to choose a four-digit number and perform the same calculations. The result will still be 1089!

## 3. The 15 Trick

**Trick:** Always get the number 15, regardless of the initial number chosen.

**How to Perform:**

- Ask your friend to choose any two-digit number (e.g., 34, 56, 78).
- Multiply the chosen number by 3.
- Add the result to the original number.
- Subtract 45 from the sum.
- The final result will always be 15!

**Example:**

Let’s say your friend chooses the number 56.

- Multiply 56 by 3: 56 * 3 = 168
- Add 168 to the original number: 168 + 56 = 224
- Subtract 45 from the sum: 224 – 45 = 179

No matter which two-digit number your friend chooses, the final result will always be 15!

**Pro Tip:** To make the trick more impressive, you can ask your friend to choose a three-digit number and perform the same calculations. The result will still be 15!

## 4. The Age Guesser

**Trick:** Guess your friend’s age using a series of calculations.

**How to Perform:**

- Ask your friend to think of their age.
- Multiply their age by 2.
- Add 5 to the result.
- Multiply the new result by 50.
- Ask your friend if they have already celebrated their birthday this year. If yes, ask them to add 1769 to the result. If no, ask them to add 1768.
- Subtract their birth year from the result.
- The final result will be a three-digit number, where the first digit represents their age and the last two digits represent the current year.

**Example:**

Let’s say your friend is 25 years old and their birth year is 1996.

- Multiply 25 by 2: 25 * 2 = 50
- Add 5 to the result: 50 + 5 = 55
- Multiply 55 by 50: 55 * 50 = 2750
- Since your friend has already celebrated their birthday this year, add 1769 to the result: 2750 + 1769 = 4519
- Subtract their birth year (1996) from the result: 4519 – 1996 = 2523

The final result, 2523, represents your friend’s age (25) and the current year (2023)!

**Pro Tip:** Make sure to ask your friend if they have already celebrated their birthday this year before performing the trick. Adjust the addition accordingly to get the correct result.

## 5. Quick Addition

**Trick:** Add two-digit numbers quickly using place value principles.

**How to Perform:**

- Ask your friend to choose any two-digit number (e.g., 34, 56, 78).
- Multiply the tens digit by 11.
- Add the result to the original number.
- The final result will be a three-digit number, where the hundreds digit is the sum of the tens digits and the units digit is the sum of the units digits.

**Example:**

Let’s say your friend chooses the number 34.

- Multiply the tens digit (3) by 11: 3 * 11 = 33
- Add 33 to the original number: 33 + 34 = 67

The final result, 67, represents the sum of the tens digits (3 + 3 = 6) and the units digits (4 + 7 = 7)!

**Pro Tip:** This trick works for any two-digit number. Just remember to multiply the tens digit by 11 and add it to the original number.

## 6. The Number 8 Trick

**Trick:** Perform a series of calculations to always result in the number 8.

**How to Perform:**

- Ask your friend to choose any number.
- Multiply the chosen number by 2.
- Add 16 to the result.
- Divide the new result by 2.
- Subtract the original number from the result.
- The final result will always be 8!

**Example:**

Let’s say your friend chooses the number 5.

- Multiply 5 by 2: 5 * 2 = 10
- Add 16 to the result: 10 + 16 = 26
- Divide 26 by 2: 26 / 2 = 13
- Subtract the original number (5) from the result: 13 – 5 = 8

No matter which number your friend chooses, the final result will always be 8!

**Pro Tip:** To make the trick more impressive, you can ask your friend to choose a three-digit number and perform the same calculations. The result will still be 8!

## 7. The Number 2 Trick

**Trick:** Always get the number 2, regardless of the initial number chosen.

**How to Perform:**

- Ask your friend to choose any number.
- Multiply the chosen number by 2.
- Add 4 to the result.
- Divide the new result by 2.
- Subtract the original number from the result.
- The final result will always be 2!

**Example:**

Let’s say your friend chooses the number 7.

- Multiply 7 by 2: 7 * 2 = 14
- Add 4 to the result: 14 + 4 = 18
- Divide 18 by 2: 18 / 2 = 9
- Subtract the original number (7) from the result: 9 – 7 = 2

No matter which number your friend chooses, the final result will always be 2!

**Pro Tip:** To make the trick more impressive, you can ask your friend to choose a three-digit number and perform the same calculations. The result will still be 2!

## 8. The Shoe Size and Age Trick

**Trick:** Determine someone’s shoe size and age using a series of calculations.

**How to Perform:**

- Ask your friend to think of their shoe size (in European sizes) and their age.
- Multiply their shoe size by 5.
- Add 50 to the result.
- Multiply the new result by 20.
- Add their age to the result.
- Subtract 1050 from the sum.
- The final result will be a three-digit number, where the first two digits represent their shoe size and the last digit represents their age.

**Example:**

Let’s say your friend has a shoe size of 42 and is 30 years old.

- Multiply 42 by 5: 42 * 5 = 210
- Add 50 to the result: 210 + 50 = 260
- Multiply 260 by 20: 260 * 20 = 5200
- Add their age (30) to the result: 5200 + 30 = 5230
- Subtract 1050 from the sum: 5230 – 1050 = 4180

The final result, 4180, represents your friend’s shoe size (42) and their age (30)!

**Pro Tip:** Make sure your friend is familiar with European shoe sizes before performing this trick. Adjust the calculations accordingly if they use a different shoe size system.

## 9. The Digit Trick

**Trick:** Get a number containing specific digits after a series of calculations.

**How to Perform:**

- Ask your friend to choose any two-digit number where the tens digit is greater than the units digit (e.g., 43, 76, 98).
- Multiply the chosen number by 3.
- Add the result to the original number.
- Subtract 9 from the sum.
- The final result will be a two-digit number, where the tens digit is the sum of the original number’s digits and the units digit is the difference between the original number’s digits.

**Example:**

Let’s say your friend chooses the number 76.

- Multiply 76 by 3: 76 * 3 = 228
- Add 228 to the original number: 228 + 76 = 304
- Subtract 9 from the sum: 304 – 9 = 295

The final result, 295, represents the sum of the original number’s digits (7 + 6 = 13) and the difference between the original number’s digits (7 – 6 = 1)!

**Pro Tip:** This trick works for any two-digit number where the tens digit is greater than the units digit. Just remember to multiply by 3, add to the original number, and subtract 9.

## 10. The Three-Digit Manipulation Trick

**Trick:** Manipulate a three-digit number to get a specific result.

**How to Perform:**

- Ask your friend to choose any three-digit number (e.g., 123, 456, 789).
- Rearrange the digits to form a new number.
- Subtract the smaller number from the larger number.
- The final result will be a three-digit number, where the hundreds digit is the difference between the original number’s digits, the tens digit is the sum of the original number’s digits, and the units digit is the difference between the tens and units digits.

**Example:**

Let’s say your friend chooses the number 456.

- Rearrange the digits to form a new number: 654 (larger number) and 456 (smaller number).
- Subtract the smaller number from the larger number: 654 – 456 = 198

The final result, 198, represents the difference between the original number’s digits (5 – 4 = 1), the sum of the original number’s digits (4 + 5 + 6 = 15), and the difference between the tens and units digits (5 – 6 = -1)!

**Pro Tip:** This trick works for any three-digit number. Just remember to rearrange the digits, subtract the smaller number from the larger number, and analyze the result.

## 11. The Magic Square

**Trick:** Create a square where the sum of each row, column, and diagonal is the same.

**How to Perform:**

- Draw a 3×3 grid, leaving empty spaces for the numbers.
- Ask your friend to choose any number between 1 and 9 and write it in the center square.
- Fill in the remaining squares with the numbers 1 to 9, making sure each number is used only once.
- The sum of each row, column, and diagonal will always be 15!

**Example:**

Here’s an example of a magic square:

```
2 | 9 | 4
-----------
7 | 5 | 3
-----------
6 | 1 | 8
```

The sum of each row, column, and diagonal is 15:

- Row 1: 2 + 9 + 4 = 15
- Row 2: 7 + 5 + 3 = 15
- Row 3: 6 + 1 + 8 = 15
- Column 1: 2 + 7 + 6 = 15
- Column 2: 9 + 5 + 1 = 15
- Column 3: 4 + 3 + 8 = 15
- Diagonal 1: 2 + 5 + 8 = 15
- Diagonal 2: 4 + 5 + 6 = 15

No matter which number your friend chooses for the center square, the sum will always be 15!

**Pro Tip:** Magic squares can be of different sizes, such as 4×4, 5×5, and so on. The sum of each row, column, and diagonal will still be the same.

## 12. The Fibonacci Trick

**Trick:** Guess the number someone is thinking of using the Fibonacci sequence.

**How to Perform:**

- Ask your friend to think of any number.
- Multiply their number by 2.
- Add the result to the previous number in the Fibonacci sequence.
- The final result will be the number your friend is thinking of!

**Example:**

Let’s say your friend is thinking of the number 8.

- Multiply 8 by 2: 8 * 2 = 16
- Add 16 to the previous number in the Fibonacci sequence (5): 16 + 5 = 21

The final result, 21, is the number your friend is thinking of!

**Pro Tip:** The Fibonacci sequence starts with 0 and 1, and each subsequent number is the sum of the two previous numbers (0, 1, 1, 2, 3, 5, 8, 13, 21, and so on). Use this sequence to guess your friend’s number!

## 13. The Mind Reader

**Trick:** Read your friend’s mind and guess their chosen number.

**How to Perform:**

- Ask your friend to think of any number between 1 and 10.
- Multiply their number by 2.
- Add 8 to the result.
- Divide the new result by 2.
- Subtract their original number from the result.
- The final result will always be 4!

**Example:**

Let’s say your friend is thinking of the number 7.

- Multiply 7 by 2: 7 * 2 = 14
- Add 8 to the result: 14 + 8 = 22
- Divide 22 by 2: 22 / 2 = 11
- Subtract their original number (7) from the result: 11 – 7 = 4

No matter which number your friend chooses, the final result will always be 4!

**Pro Tip:** To make the trick more impressive, you can ask your friend to think of a two-digit number and perform the same calculations. The result will still be 4!

## 14. The Calendar Trick

**Trick:** Determine the day of the week for any given date.

**How to Perform:**

- Ask your friend to think of any date (e.g., their birthday, a historical event).
- Subtract 1 from the year for dates in January or February. Keep the year as is for other months.
- Divide the year by 4 and round down to the nearest whole number.
- Add the day of the month to the result.
- Add a constant value based on the month (see table below).
- If the year is a leap year and the month is January or February, subtract 1 from the result.
- Divide the result by 7 and find the remainder.
- The remainder corresponds to a specific day of the week (0 = Sunday, 1 = Monday, and so on).

Month | Constant Value |
---|---|

January | 1 |

February | 4 |

March | 4 |

April | 0 |

May | 2 |

June | 5 |

July | 0 |

August | 3 |

September | 6 |

October | 1 |

November | 4 |

December | 6 |

**Example:**

Let’s say your friend is thinking of the date January 1, 2024.

- Subtract 1 from the year: 2023
- Divide 2023 by 4 and round down: 505
- Add the day of the month (1) to the result: 506
- Add the constant value for January (1): 507
- Since 2024 is a leap year and the month is January, subtract 1 from the result: 506
- Divide 506 by 7 and find the remainder: 506 % 7 = 2

The remainder, 2, corresponds to Tuesday, which is the day of the week for January 1, 2024!

**Pro Tip:** This trick works for any date, past or future. Just follow the steps and use the constant values for each month.

## 15. The Multiplication Trick

**Trick:** Multiply any two-digit number by 11 mentally.

**How to Perform:**

- Ask your friend to choose any two-digit number (e.g., 34, 56, 78).
- Add the tens digit and the units digit together.
- Place the sum between the original number’s digits.
- The final result will be the two-digit number multiplied by 11!

**Example:**

Let’s say your friend chooses the number 34.

- Add the tens digit (3) and the units digit (4) together: 3 + 4 = 7
- Place the sum (7) between the original number’s digits: 374
- The final result, 374, is the product of 34 multiplied by 11!

**Pro Tip:** This trick works for any two-digit number. Just remember to add the digits together and place the sum between the original number’s digits.

## FAQ

### What are some good math tricks?

Here are some good math tricks to impress your friends:

- The 37 Trick: Choose a three-digit number with the same digits and divide it by the sum of its digits to always get 37.
- The 1089 Trick: Manipulate a chosen number to get the result 1089.
- The 15 Trick: Always get the number 15, regardless of the initial number chosen.
- The Age Guesser: Guess your friend’s age using a series of calculations.
- Quick Addition: Add two-digit numbers quickly using place value principles.
- The Number 8 Trick: Perform a series of calculations to always result in the number 8.
- The Number 2 Trick: Always get the number 2, regardless of the initial number chosen.
- The Shoe Size and Age Trick: Determine someone’s shoe size and age using a series of calculations.
- The Digit Trick: Get a number containing specific digits after a series of calculations.
- The Three-Digit Manipulation Trick: Manipulate a three-digit number to get a specific result.
- The Magic Square: Create a square where the sum of each row, column, and diagonal is the same.
- The Fibonacci Trick: Guess the number someone is thinking of using the Fibonacci sequence.
- The Mind Reader: Read your friend’s mind and guess their chosen number.
- The Calendar Trick: Determine the day of the week for any given date.
- The Multiplication Trick: Multiply any two-digit number by 11 mentally.

These tricks cover a wide range of mathematical concepts and are sure to amaze your friends!

Read more about “… Top 20 Mind-Blowing Word Mind Tricks to Play on Friends”

### How to do math magic tricks?

To do math magic tricks, follow these steps:

- Choose a math trick that you want to perform.
- Practice the trick until you can perform it smoothly and confidently.
- Understand the underlying math behind the trick and be able to explain it to your audience.
- Use misdirection and showmanship to divert your audience’s attention away from the actual method.
- Perform the trick with confidence and flair, engaging your audience throughout the process.
- Build up the suspense and reveal the trick’s secret at the right moment.
- Enjoy the reactions of your friends as they are amazed by your math magic skills!

Remember, practice is key to mastering math magic tricks. The more you practice, the more confident and polished your performances will be.

Read more about “What is the 4 Digit Number Magic Trick? …”

### What is the math trick 1089?

The 1089 trick is a math magic trick where you manipulate a chosen number to get the result 1089. Here’s how it works:

- Ask your friend to choose any three-digit number where the first and last digits are different (e.g., 123, 456, 789).
- Rearrange the digits to form a new number, both ascending and descending.
- Subtract the smaller number from the larger number.
- Reverse the result and add it to the original number.
- The final result will always be 1089!

For example, let’s say your friend chooses the number 456:

- Rearrange the digits to form a new number: 654 (larger number) and 456 (smaller number).
- Subtract the smaller number from the larger number: 654 – 456 = 198
- Reverse the result: 891
- Add the reversed result to the original number: 891 + 456 = 1347

No matter which three-digit number your friend chooses, the final result will always be 1089!

### How do you make friendship with maths?

Making friends with math can be a fun and rewarding experience. Here are some tips to help you build a strong friendship with math:

- Embrace the mindset: Develop a positive attitude towards math and believe in your ability to learn and understand mathematical concepts.
- Practice regularly: Set aside dedicated time to practice math problems and exercises. The more you practice, the more comfortable you’ll become with math.
- Seek help when needed: Don’t hesitate to ask for help when you’re stuck on a math problem. Reach out to teachers, tutors, or online resources for guidance.
- Make it relatable: Connect math to real-life situations and everyday experiences. Understanding the practical applications of math can make it more interesting and relevant.
- Explore different approaches: Math has multiple ways to solve a problem. Experiment with different strategies and find the approach that works best for you.
- Collaborate with others: Join study groups or math clubs to collaborate with peers who share your interest in math. Discussing and solving problems together can enhance your understanding.
- Celebrate small victories: Acknowledge and celebrate your progress in math. Each small achievement will boost your confidence and motivate you to continue learning.

By following these tips, you can develop a strong friendship with math and unlock its endless possibilities!

## Conclusion

Math magic tricks are a fantastic way to entertain and amaze your friends while showcasing your mathematical prowess. From the 37 Trick to the Multiplication Trick, these mind-blowing tricks will leave your friends in awe and make you the star of any gathering.

Remember to practice each trick thoroughly and understand the underlying math behind it. Confidence and showmanship are key to delivering a captivating performance. Use misdirection, engage your audience, and build up the suspense before revealing the trick’s secret.

So, go ahead and unleash your inner math magician! With these 15 mind-blowing math magic tricks in your repertoire, you’ll be able to entertain, educate, and inspire others with the fascinating world of mathematics.

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## Reference Links

Now go out there and dazzle your friends with these mind-blowing math magic tricks! Remember, the real magic is in the power of mathematics.