Hey hello to all today am here to share my most exited maths trick in getting a square numbers of 5 series. Before that I need to mention where I learned this, my college placement staff Thiru. Marappan. This is an awesome trick let's starts the lesson.
Choose your own number ending with 5
For example am going to take 85 am here going to square this number with easy trick.
In this above image you can see, I separated 8 & 5 and square the last digit 52. Write 25 on the separate side.
On other side we have 8. Add 1 to that number and multiply with the existing one you can clearly understand by the above image. Here 8+1=9. Then 9×8=72.
Finally attach the founded results from step 1 & 2. You will get the answer as 7225. And here is the calci verification.
You may can try this with any numbers ending with 5. All the image and verification are originally created by me 