A Perfect Square

I think nobody knows these sillythings.

Did you ever notice that you are much slower in calculations.😥

Then not to worry i will teach you how to fast in calculation.

If i asked you to square the number 58 in just 2second.

I will give a trick to make this simple.

Before we go to the formula you must lookout the relationship.

I found this pattern astonishing. Next I tried numbers that add to 26 and got similar results. First I worked out 13²=169,

then computed 12 ×14 =168, 11×15 = 165, 10× 16 =160.

so by this rule i got that if you have to square a number take a nearest number that end up with '0' (to do more faster calculation).

Take another number which is also same difference of the before two numbers but take the opposite side.

Ex.if you 1st take in greater side the you have to choose in smaller side.

So here we Have to Calculate 13²

We simply do

1.16×10=160

2.3²=9

3.160+9

You can also do it as (14×12)+1²

0r (11×15)+2² or etc.

This is the task for you 

1. 98²=?

2.67²=?

3.85²=?

And also share and visit the site for more new tricks at. Math Tricks