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These 7 impressive math tricks will blow your mind

6/13/2019
5,110 views
Science Story: These 7 impressive math tricks will blow your mind

Math can be fun, and even some simplest equations and rules may surprise you. Prepare a calculator and try these funny tricks with numbers. Attention: some of them are hacks that can be highly useful in your everyday life!

#1

Science Story: Think of any three-digit number in which each of the digits is the same, such as 222 or 888. Add the digits together. Divide the three digit number by this number. The answer is 37.
What was your initial number? Did it work?

#2

Science Story: "How I wish I could calculate pi." Count the number of letters in each word of this sentence, and it will give you the first seven digits of π. 3.141592

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#3

Science Story: Select a number from 1 to 6. Multiply the number by 9. Multiply it by 111. Multiply it by 1001. Divide the answer by 7. The answer will contain the digits 1, 2, 4, 5, 7, and 8.
Did it work? What was your first number?

#4

Science Story: Take a number. Double it. Add 9. Subtract 3. Divide by 2. Subtract your original number. Your answer should be 3.

#5

Science Story: An easy trick to multiply two double digit numbers: Subtract each number from 100. Add these values together. 100 minus this number is the first part of the answer. Multiply the digits from Step 1 to get the second part of the answer.
Did you try it? Would you use this method in your everyday life?

#6

Science Story: If you multiply 6 by an even number, the answer will end with the same digit. The number in the tens place will be half of the number in the ones place.
6 x 4 = 24
6 x 6 = 36
6 x 2 = 12

Did you know?

#7

Science Story: To quickly square a two-digit number that ends in 5, multiply the first digit by itself plus 1. Then put a 25 at the end.

Have you ever heard about these tricks and hacks? Which one amazed you the most? Do you know any other tricks?

Tell us in the comments!

SHARE this article with someone who loves SCIENCE and MATH!

#Science #IQ #knowledge

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What are your thoughts on this subject?
14 Comments
ralphdrambach
ralphdrambach
Number seven should be multiply first digit by itself, then add the first digit to that product and then put 25 at the end. For example, 45*45=2,025, 4*4=16+4=20, add 25 to the end and you get 2,025. It works every time!
6
Jun 15, 2019 6:06PM
Yvonne Benn
Yvonne Benn
All the calculations that “magically” end with a number you predict are based on the same principle.
0
Apr 16, 2022 4:52PM
Cindy Ursan
Cindy Ursan
Fun! I failed high school math, so I’m sure glad my phone has a calculator!!🤓
0
Oct 30, 2021 1:23AM
steve
steve
#2: May I have a large container of coffee, madam. This gives 3.14159265, Pi to 9 digits. As to #5, I tried 2 different 2-digit numbers 6 times, and couldn't get anywhere near the results that were suggested.
0
Sep 6, 2021 6:23PM
lhreese
lhreese
Math is fun and this is great!
0
Mar 9, 2020 5:16PM
Ilias Tsiabardas
Ilias Tsiabardas
Today I can not focus because of a terrible toothache ,thank you for your information ,i would try another day
0
Aug 22, 2019 9:25PM
Wilma Wilson
Wilma Wilson
Good to get your brain to work.
0
Jul 12, 2019 4:32AM
David K. Anderson
David K. Anderson
Me neither. can someone please explain?
0
Jun 15, 2019 2:03AM
Chris Garrett-Petts
Chris Garrett-Petts
Terrible instructions
1
Jun 14, 2019 11:55PM
Thomas Begeng
Thomas Begeng
Also - to represent pi (3.14159265) as a fraction instead of 22/7 which works out as 3.1428571 correct to only 2 decimals - try 355/113 = 3.14159292 correct to within 3 parts per 10 million!
0
Jun 14, 2019 7:33AM
Ian Swindale
Ian Swindale
Since I once got 0/100 in a maths exam and had to have special coaching to get through what was then known in the UK as "O" levels all of this was way beyond me
1
Jun 14, 2019 4:00AM
hector tubens
hector tubens
Since Math was my major, loved the examples given.
0
Jun 13, 2019 9:04PM
dancohenour
dancohenour
Example #6 makes me think of what you can do with multiples of 9.
0
Jun 13, 2019 7:16PM
ninakamwene
ninakamwene
Hog wash
2
Jun 13, 2019 6:26PM

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