Shortcut to Find Square of A Number: Final Lesson

Dear Readers,

Yesterday I have shared you how to find Square of a number in Lesson One. Today I am sharing you the last rule and this is very important. By this rule you can fine square of any number. Let’s start.

Shortcut to Find Square of A Number: Final Lesson

At first, separate the numbers like “Numbers Close to 50”, “Numbers Close to 1000”, “Numbers Close to 150”, “Numbers Close to 200”, “Numbers Close to 250”, “Numbers Close to 300”, and so on.

In previous lesson, you found the square of 10, 11 &15, 20, 21 & 25, 30, 31 & 35 so on. Now we find the square of the rest numbers. You may use today’s rule for all numbers. But, I prefer Rules of Lesson One for these numbers.

Rule: 1 Number Close to 50

25 + X | X²

(X takes -Value when the number is below 50 or vice versa & the digit will be two after | )

If we find the square of 53 (close to 50), then

53² = 25 + X | X²       

53² = 25 + 3 | 3²

53² = 28 | 09

53² = 2809

If we find the square of 53 (close to 50), then

46² = 25 + X | X²       

46² = 25 - 4 | 4²

46² = 21 | 16

46² = 2106

Rule: 2 Number Close to 100

100 + 2X | X²

(X takes -Value when the number is below 50 or vice versa & the digit will be two after | )

If we find the square of 104 (close to 100), then

104² = 100 + 2X | X² 

104² = 100 + 2.4 | 4²

104² = 100 + 8 | 16

104² = 10816

If we find the square of 92 (close to 100), then

92² = 100 + 2X | X²   

92² = 100 – 2.8 | 8²

92² = 100 -16 | 64

92² = 84 | 64

92² = 8464

Rule: 3 Number Close to 150

225 + 3X | X²

(X takes -Value when the number is below 50 or vice versa & the digit will be two after | )

If we find the square of 167 (close to 100), then

167² = 225 + 3X | X² 

167²= 225 + 3.17 | 17²

167² = 225 + 51 | 289

167²= 276 | 289 (add 2 with 6, makes 8)

167²= 27889

If we find the square of 134 (close to 100), then

134² = 225 + 3X | X² 

134² = 225 – 3.16 | 16²

134² = 225 - 48 | 256

134² = 177 | 256 (add 2 with 7, makes 9)

134² = 17956

You can try it for other numbers. Rules are given below:

Rule: 4 Number Close to 200

400 + 4X | X²

(X takes -Value when the number is below 50 or vice versa & the digit will be two after | )

Rule: 5 Number Close to 250

625 + 5X | X²

(X takes -Value when the number is below 50 or vice versa & the digit will be two after | )

Rule: 6 Number Close to 300

900 + 6X | X²

(X takes -Value when the number is below 50 or vice versa & the digit will be two after | )

Rule: 7 Number Close to 350

1225 + 7X | X²

(X takes -Value when the number is below 50 or vice versa & the digit will be two after | )


Try it for numbers close to 400, 450, 500, 550 so on.

For Any Query Kindly Comment.

Thanks!!

Join 40,000+ readers and get free notes in your email

This entry passed through the Full-Text RSS service - if this is your content and you're reading it on someone else's site, please read the FAQ at http://ift.tt/jcXqJW.