true

Take GMAT Coaching from the Best Tutors

Affordable fees
1-1 or Group class
Flexible Timings
Verified Tutors

Search in

Short - Cut For Squaring Two-Digit Numbers [May Also Be Extended To Three-Digit And Four-Digit Numbers As Well]

Intellect Growth Management

31/05/2017 0 0

Square of a two-digit number:

Quick Method:

(82)²= 6404

32 [8*2*2] ==> 8 and 2 from original number itself and another 2 from the power of 82 i.e. 2

6724

Likewise for square of 79:

(79)²= 4981

126 [7*9*2]

6241 ==> Final Answer

Likewise for square of 63:

(63)²

= 3609

+ 36

= 3969 ==>Final Answer

0 Like 0 Dislike

Follow 0

Other Lessons for You

Order of Operations

The information below explains PEMDAS: parentheses, exponents, multiplication, division, addition, and subtraction When you have a math problem that involves more than one operation—for...

Amrtha S.

0 0

Lines and angles (class-7)

Lines and Angles – Definitions & Properties Line segment: A line segment has two end points with a definite length. Ray : A ray has one end point and infinitely extends in one direction. Straight...

Mahesh Kumar

1 0

How to Be a Professional Teacher?

How to be a professional teacher? 1. Inspire your students/clients and create confidence in them. 2. Make your clients trust you. 3. Get trusted by students also. 4. Dress like a professional (coat,...

Atharva

1 0

How To Prepare For Exams?

When you are preparing for subjects, take 2 subjects at a time (one difficult and one easy). First start with your difficult subject and spend as much time as you can. So, when you feel you are stressed...

Akhilaa Panaganti

2 0

Common Factors

Factors that two numbers have in common are called the common factors of those numbers. Example: What are the common factors of 20 and 25? The factors of 20 are 1, 2, 4, 5, and 20. The factors...

Amrtha S.

0 0

Find GMAT Coaching classes near you

Online GMAT Coaching

Looking for GMAT Coaching classes?

Learn from Best Tutors on UrbanPro.

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you

GMAT Coaching Questions

I am reappearing for the GMAT.Is 30 days enough to score high on the exam?

12 Answers

Please suggest name of few good reference books for GMAT Sentence Correction section

30 Answers

Hi All, If I take up GMAT exam now, will the GMAT score remain valid after two years for admission? Thank You Tony

28 Answers

How to improve GMAT SCORE?

5 Answers

Which book is best for GMAT math?

23 Answers

Looking for GMAT Coaching Classes?

The best tutors for GMAT Coaching Classes are on UrbanPro

Select the best Tutor
Book & Attend a Free Demo
Pay and start Learning

Take GMAT Coaching with the Best Tutors

The best Tutors for GMAT Coaching Classes are on UrbanPro

I am a Student I am a Tutor
Name*	Please enter your full name. Please enter institute name.
Email*	Please enter your email address.
Phone*	Please enter a valid phone number.
Location*	Please enter a pincode or area name.
City*	Please enter city name.
Category*	Please enter category.
Gender*	Male Female Please select your gender.
Email ID/ Mobile No.*	Please enter either mobile no. or email.
Enter Password*	Please enter OTP Please enter Password Sorry, this phone number is not verified, Please login with your email Id.