1. The Magic Number 1089

Surprise your friends with this neat trick:

1. Ask someone to pick a three-digit number where the digits are not all the same (e.g., 421).
2. Now, reverse the digits to form a new number (in this case, 124).
3. Subtract the smaller number from the bigger number (421 - 124 = 297).
4. Take this result and again reverse the digits (792).
5. Finally, add these two numbers together (297 + 792 = 1089).

No matter which number your friends choose, the answer will always be 1089!

2. The 11 Times Trick

This simple multiplication trick works with numbers 10-19:

• Pick any two-digit number from 10 to 19 (e.g., 13).
• Multiply it by 11 (13 x 11 = 143).
• Alternatively, take the original number (13), add the two digits (1 + 3 = 4), and place this sum between the two original digits to get 143.

This trick works because of the way digits align when multiplying by 11 with these specific numbers.

3. The Age Prediction Trick

Amaze anyone with this trick by predicting their age:

1. Ask a person to multiply the first number of their age by 5. (If they are 29; 2x5 = 10).
2. Tell them to add 3 (10 + 3 = 13).
3. Now ask them to double this number (13 x 2 = 26).
4. Have them add the second number of their age to the result (26 + 9 = 35).
5. Finally, subtract 6 (35 - 6 = 29).

Their final answer will reveal their age!

Conclusion

These number tricks are fun and easy to perform. They use simple mathematical principles and are great at parties or as icebreakers. Try them out and enjoy the reactions you'll get!