10 Mind-Blowing Math Tricks to Amaze Your Friends and Boost Your Brain

Want to impress your friends with something extraordinary? Did you know Math can feel like magic—only it’s real, logical, and backed by numbers! Whether you’re at school, a party, or just want to sharpen your brain, these Math tricks will leave everyone amazed and help you conquer your fear of numbers.

Not only are these tricks fun, but they also enhance your calculation skills, making exams and everyday Math much easier.

Bonus: Want to learn how to multiply, square, and divide numbers rapidly in exams? Check out our blog – 10 Vedic Maths Tricks For Rapid Calculations

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Top 10 Cool Math Tricks to Surprise Your Friends

Here is a collection of 10 Math tricks you can learn to trick your friends and make yourself fall in love with the subject of numbers.

Trick 1: The Magical 37

• Step 1: Choose a three-digit number with the same digits. Let’s go with 333.
• Step 2: Add the digits together. So, 3 + 3 + 3 = 9.
• Step 3: Divide the original number with this sum. So, 333 / 9 = 37.
• Step 4: This works every single time.

Trick 2: The Mysterious 1089!

• Step 1: Choose any number, like 537.
• Step 2: Now the digits require to be ordered in descending order, 753. This is your 1st number.
• Step 3: Replace or rearrange the same digits in the ascending order, 357. This is your 2nd number.
• Step 4: Subtract the 2nd from the 1st, which will give us the answer, 753 – 357 = 396.
• Step 5: Now change the order of digits of the answer to getting the number, 693.
• Step 6: Let’s add both the numbers, 396 + 693 = 1089! No matter the number, you’ll always get 1089!

Also Check – 20 Mental Math Shortcuts to Solve Complex Calculations in Seconds

Trick 3: The Guaranteed 15

Yet another trick that makes you turn to the number 15 no matter what number you choose.

• Step 1: Think of a number, such as 279.
• Step 2: Multiply it by 3. So, 279 x 3 = 837.
• Step 3: Now add 45 to the answer. So, 837 + 45 = 882.
• Step 4: Multiply the answer by 2. So, 882 x 2 = 1764.
• Step 5: Divide this answer by 6. This will give you 1764 / 6 = 294.
• Step 6: Subtract your original number from this answer.
• Step 7: That makes it 294 – 279 = 15. Surprising, right?

Trick 4: Guess Your Friend’s Age

• Step 1: Take the year your was born, let’s say 1985
• Step 2: Add 12 to the year.(1985 + 12 =1997)
• Step 3: Divide by 2.(1997/2 = 998.5)
• Step 4: Subtract 1000 from the answer in the step 3.(1000 – 998.5=2.5)
• Step 5: Multiply by the result with 10.(2.5 x 10 =25)
• Step 6: Add 9 to the result in step 5.(25+9=34). The result is the age of your Friend

You might also like – 10 Logic Math Puzzles for Kids With Answers

Trick 5: Lightning-Fast Two-Digit Addition

Master quick additions using this approach:

• Example: 57 + 79
• Split the second number: 79 = 70 + 9
• Add tens first: 57 + 70 = 127
• Add units next: 127 + 9 = 136
• Simple, fast, and accurate!

Trick 6: Predict the Number—It’s Always 8!

• Pick a number, say 22
• Subtract 1: 22 – 1 = 21
• Multiply by 3: 21 x 3 = 63
• Add 12: 63 + 12 = 75
• Divide by 3: 75 ÷ 3 = 25
• Add 5: 25 + 5 = 30
• Subtract the original number: 30 – 22 = 8

Trick 7: The Answer Will Always Be 2

• Think of a number, e.g., 16
• Multiply by 3: 16 x 3 = 48
• Add 6: 48 + 6 = 54
• Divide by 3: 54 ÷ 3 = 18
• Subtract the original number: 18 – 16 = 2

Must Read: CBSE to introduce 2-level for class 10^th Math Paper from 2020 and other major changes.

Trick 8: Shoe Size and Age Revealed

• Step 1: Multiply show size by 5, let’s say 5 is the show number. (5 x 5 =25)
• Step 2: Add 50 to the result obtained in step 1. (25+50 =75)
• Step 3: Multiply the number obtained in step 2 by 20. (75 x 20= 1500)
• Step 4: Now ADD 1019.(1500 + 1019 = 2519)
• Step 5: Subtract the year you were born with the above number. (2519 – 1985 =534)
• Step 6: Finally, the first digit of the number reflects the show size(534) and the last 2 digits show the age (534)

Trick 9: 1, 2, 4, 5, 7, 8 Number pattern

• Choose a number between 1 and 6, say 6
• Multiply by 9: 6 x 9 = 54
• Multiply by 111: 54 x 111 = 5994
• Multiply by 1001: 5994 x 1001 = 6001394
• Divide by 7: 6001394 ÷ 7 = 857342
• The answer contains all numbers: 1, 2, 4, 5, 7, 8 (order may vary)

Trick 10:  Six Digits Become Three

• Pick a three-digit number, e.g., 456
• Repeat it: 456456
• Divide by 7, 11, and 13 (any order)
• You’ll get your original number: 456

Bonus: Multiply any three-digit number by 7, 11, and 13—you’ll always get the number repeated twice. Example:

• 371 x 7 x 11 x 13 = 371371

Conclusion: Make Math Your Superpower

These incredible Math tricks aren’t just fun—they sharpen your brain, speed up your calculations, and build confidence. The more you practice, the more Math will feel like second nature.

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