Square of numbers near to 100

Maths Tricks , short cut tricks for maths to make calculation easy and fast

Square of numbers near to 100 Let me explain this rule by taking examples 96^2 :- First calculate 100-96, it is 4 so 96^2 = (96-4)----4^2 = 9216 similarly 106^2 :- First calculate 106-100, it is 6 so 106^2 = (106+6)----6^2 = 11236: Example.
An other case arises
110^2 = (110+10)----100 = (120+1)----00 = 12100
similarly
89^2 = (89-11)----121 = (78+1)----21 = 7921; Is this maths trick helpful? (4193) (1351) Post / Read comment (24)

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lakshmidevi (11 years ago)

89^2=.......121 how can take u sir plz explain it sir

Like? Yes (12) | No (7)

vandana asha (11 years ago)

@LAKSHMIDEVI In previous question 121 is not the square of 89 its the square of 11,
it will be solved as,
First calculate 100-89=11
so 89^2=(89-11)----11^2=(78)---121=(78+1)---21=7921

Like? Yes (11) | No (3)

Mounika.B (11 years ago)

WHY WE R ADDING 1 TO 120 SIR? PLZ EXPLAIN

Like? Yes (5) | No (3)

upendra singh chahar (11 years ago)

@MOUNIKA.B this 1 is comes from 100.you want to say that ans should be 120100. but if difference is greater then 9 then rule get changed(slightly).

Like? Yes (9) | No (1)

Govind raj (11 years ago)

if u want to square of any no:(number-number req.to cmplte to100)*100+(square of number req.to cmplte 100)ex:86^2=(86-14)*100+14^2=7396

Like? Yes (9) | No (1)

PURIDI MOUNIKA (11 years ago)

it's a nice tric

Like? Yes (4) | No (1)

M.HARINI SHREE (10 years ago)

didnt undrstnd... cn nyon HELP

Like? Yes (1) | No (1)

Dhanalakshmi M (10 years ago)

thank you sir!!!

Like? Yes (3) | No (1)

ganesh babu (10 years ago)

(a+b)^2 and (a-b)^2

Like? Yes (2) | No

Raghu (10 years ago)

what about 116? it 11856 but the original is 13456

Like? Yes (1) | No (4)

kanimozhi (10 years ago)

110^2=110+11.....10^2=12100
120^2=14100

Like? Yes (1) | No

lakshmi (10 years ago)

pls send me all the tricks my mail id is vetrikalai10@gmail.com

Like? Yes (1) | No

ankit kumar (10 years ago)

first 110^2
110=100+10
10^2=100
take last two digit 00 nd 1 is carry
now 110+10+1=121
nd add 00
that give 12100

Like? Yes (5) | No

ankit kumar (10 years ago)

116=100+16
16^2=256
take last two digit 56 nd 2 is carry
then116+2+16=134
then 13456 is ans

Like? Yes (4) | No (1)

Mudrika Dhanda (10 years ago)

in square of nos near to 100,89 was given that is olso a 2 digit number then can it be solved this way olso?

Like? Yes (1) | No

Atul Kumar Singh (10 years ago)

for 99^2=(99-1)------01=9801
for 98^2=(98-2)----04=9604
for 97^2=(97-3)----09=9409

Like? Yes (2) | No

karthiga (10 years ago)

nice!
89^2 = (89-11)----121 = (78+1)----21(here only take 2 digit number correct ?) = 7921;

Like? Yes (1) | No (1)

D Rupa (10 years ago)

97 also near to 100.by solving this method for square of 97 the answer is wrong.....why

Like? Yes (1) | No (3)

G.KIRANMAI (10 years ago)

Is this equalent to numbers near to 1000

Like? Yes (1) | No

Akshat Mokashi (10 years ago)

@d rupa if there is only 1 digit like square(3)=9 then i think we have to append 0 before 9 to make this rule work.

Like? Yes (1) | No

anita (10 years ago)

Is dis trick z same 4 d nmbrs near to 500 ??

Like? Yes (1) | No

shailav kumar agrawal (9 years ago)

what the this sign "----" stands for

Like? Yes (1) | No

Manu (7 years ago)

adhi thappu mthod ,atla cheyakudadhu ra pichi

Like? Yes (1) | No

Nishi Gangrade (6 years ago)

Excellent thank u..

Like? Yes | No

Dimple

India

Punjab

Time: 00:01:33

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Square of numbers near to 100

Maths Tricks , short cut tricks for maths to make calculation easy and fast