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Math Trick : Fastest Method to Know the Sqaure of Number Ending WIth 5

Math Magic series bring to you another fasted method to know the square of any number which ends with 5 (five).This method is so easy that within minutes you will learn a trick that you do not need even pen paper to know the square of a number ending with 5. This will save you a lot of tie which is crucial for MAT /SAT and CAT .

Math Trick to Square A number Ending with 5

Let us say  you want to know the result of 25 x 25

Step 1 : Just add 1 to the number at 10th place  ( 2 in this case) . Thus , fir example , you will have to add 1 to 2 = 3

Step 2: Now multiply the original 10th number  with the increased number = 2 x3= 6

Math Magic:  Write 25 after the  sum found in Step 2 . i.e 6 25 .

That is the answer !

Another Example of Math Trick

135 x 135 =???

13 +1= 14

13x 14=182

Answer is 18225

Another example of math trick  in the picture given below also


Now do some practice on this Math Trick

Click Start Quiz button to test your knowledge

Comments ( 29 )

  1. I recently learned about a trick that allows me to multiply numbers 11 – 19 completely mentally. It is fantastic. So much so that I was wondering if there were any other great tricks like that one that I can use to progress in math. My math grades are good, so that’s not the issue, but any mental math tips would be welcomed.

  2. Whats a good site that has cool math tricks??? My teacher showed me something cool today and I am now addicted to finding cool math tricks!

  3. Can someone actualy explain to me what a triangle number is i know that it is 1+2+3+4ect… but i need to know why they are called it.


  4. 4(x-2y)-(5x+3y)=30


  5. I am fifteen years old and looking into possible careers. However, I dislike Maths and I would like to know if a career in management consultation requires me to wade neck deep into Maths.

  6. A factory produces 25 components at a cost of 830$, an on another run produces components at a cost of $1050. Find an expressing realating cost (C) to the number of components (n) , assuming alinear relations ship

    explain thx

  7. You know the ones where you multiply, divide, add, and subtract and at the end you get a number thats always going to be that number?

  8. I’m having some trouble learning how to draw histograms!!
    Can Anyone explain it simply?

  9. Anyone know any like the hockey stick rule (or sticks and stones), or anything else that will
    prove useful in AIME, AMC, USAMO, ARML? Thanks a lot!
    could you please elaborate on that?

  10. I am NOT looking for engineering that involes science and maths. Just maths. Except if there is a type of engineering that involves ONLY chemistry or biology. Also do you have to be at maths and physucs to do civil engineering or can you just be good at maths?

  11. i need 15 maths facts

    well…please dont give site links (but if it is a good site i dont mind)

  12. I was just wondering if people new any tricks.

    I know the squaring numbers ending in 5 trick. Like 35^2
    You take the tens diget and multiply it by 1 plus that digit and add 25 to the end so 35^2 is 3*(3+1)=12 and put 25 at the end so it’s 1225

  13. Hey, I 1st applied to Computer Technology in John Moores university, they rang me and said i didnt have high enough grades. So they offered me a foundation degree in engineering and technology, which i just noticed has 3 maths units. I am bad at maths! I got a C at GCSE. I am doing a BTEC computing corse at the minute, which has 3 maths units and they are quite hard, but im passing. How hard would this courses maths be? Thanks

  14. My Sister is in 4th grade and she is failing math! I really want to help her but she needs some tricks to understanding Multiplication and Divison. She isnt very good at grasping things and so she needs some little tricks and hints that can help her memorize stuff. If you guys have anything, anything at all let me know cause all i want for her is the best and to have a good education. THANK YOU ALL!!

  15. Donald W Taylor II
    May 17, 2012 at 6:35 PM

    some tricks that we don’t ?

    e.g. squares, square roots of large numbers, multiplication etc. …

  16. Luke buys a pair of trainers in switzerland
    he can pay either 86 swiss francs or 56 euros
    the exchange rates are
    £1=2.10 swiss francs
    £1=140 euros
    which currency should he choose to get the best price and how much would he save?
    give your answers in £

  17. Hi everyone, I’m currently in high school and I’m doing the International Bacaloriate, IB. I am planning to study Geography at university, and I have to choose between doing the higher or lower level maths. I am not very good at maths and i am sure i will have difficulties doing higher level maths but i will be willing to do it if it is necessary for a geography degree.
    So how important is maths for a geography degree? Can i take the lower level maths or must i do the higher level?

  18. I’m thinking of those kinds that you figure out what number a person is thinking, but any kind of math trick would be great! thanks

  19. I’m going to university in England in september, currently on a gap year in New Zealand and i can’t be carrying giant maths books around as i am back packing. When I get to uni i don’t want to be completely out of step with my maths so what would be the best stuff to practice? Differentiation trig differentiation integration? Please be specific if possible. Any useful websites would be good too but my college can provide me with plenty of questions if not.

  20. Like the hockey stick rule (or sticks and stones), do you guys know any? I need it for

  21. My daughter is going into 6th grade and she is not good at multiplication. Do you know of any good math tricks so she can be good at multiplication when she goes into middle school. She has problems in the 7-8-9-12 math times tables. Or can you give me a good website for math tricks.

  22. Maths is my weakest subject as i got G in the exam however i got F in the recent mock exam. I need to pass (get C) in the foundation paper to get into college because they ask for C or higher in Maths. How many questions do i need to get right to pass to the Maths foundation paper?

  23. as long as its over like a 4th grade level im 17 and i could use any and all math tips tricks plz lol. (i suck at math).

  24. Brazilian Princess
    August 13, 2012 at 2:23 AM

    At the moment I am doing Maths and Further Maths A levels but I wondered it anyone knew what type of experience I could gain, like any good short courses that are free/cheap and interesting or types of work experience other. I want to study Maths at university perhaps with Physics or Economics but definitely Maths.

    I actually enjoy maths and would enjoy gaining the experience as well as how it would look good on my personal statement so any suggestions would be much appreciated!

  25. What is the best way to improve my scores in Maths? I am in year 11

  26. I have my GCSE maths mock on wednesday and I am finding it really hard to revise for it.
    What is the best/most effective way to revise for maths?
    Any tips?
    Any help appreciated.

  27. For the hex strategies i already know the ladder and the bridge.

  28. I just started doing magic and I already learned all the basic tricks. What are some good trick that aren’t too easy to learn? Also nothing with coins or cards and no math tricks

  29. I am doing Bsc. Hs. Maths and computing. I use Turbo C on my computer. What can I do more? Any maths or computer science software you know that might be useful for me?

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