true

Take Class 8 Tuition from the Best Tutors

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

Search in

Squaring a 2-digit number ending in 1

Aparna B.

21/03/2017 2 0

Take a 2-digit number ending in 1.

Subtract 1 from the number.

Square the difference.

Add the difference twice to its square.

Add 1.

Example: 61 x 61

Subtract 1: 61 - 1 = 60

Square the difference: 60 × 60 = 3600

Add the Difference Twice to its Square: 3600 + 60 + 60 = 3720

Add 1:

3720 + 1 = 3721

There you have it! 61 × 61 = 3721

2 Like 0 Dislike

Follow 1

Other Lessons for You

smart work with patience creates victory

In a village named ramapuram aa unemployee gopi lives. He is in search of job, roaming without food from a week. He decided to sell the wooden sticks by chopping the tree, he started chopping the trunk...

Naveen Kumar Bandari

0 0

Difference Between Atom and Molecule

An atom is smallest particle in an element that has the properties of the element. It is not possible to breakdown the atom further retaining the properties of the element. Atoms are not visible to the...

Debraj Paul

0 0

Difference between atomic number and atomic mass

Atomic mass Atomic number It is the total number of protons and neutrons in an element’s nucleus It is just the number of protons in an elements nucleus. Does not define the type...

Debraj Paul

0 0

Triangles

A triangle has three sides and is made of straight lines. A triangle may be classified by how many of its sides are of equal length. Or, it may be classified by what kind of angles it has. Types...

Amrtha S.

0 0

Food and its Functions

To keep the body working properly, it must be supplied with right amount of chemicals in food. The chemical substances present in food are called Nutrients. Functions of Food It provides energy for...

Tanvi J.

0 0

Find Class 8 Tuition near you

Online Tuition Class 8

Looking for Class 8 Tuition ?

Learn from Best Tutors on UrbanPro.

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you

Class 8 Tuition Questions

Solve: If a^2+b^2=52 and ab=24, find the value of (a-b)?

10 Answers

Well, I have a question that might sound a little out of context. But I am quite curious about it. Just...

120 Answers

What is a milky way?

7 Answers

A car covered 66.65km in 1.3 hours. How much distance will it cover in an hour?

12 Answers

Can fire produced by oil be controlled by water? How?

18 Answers

Looking for Class 8 Tuition Classes?

The best tutors for Class 8 Tuition Classes are on UrbanPro

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

Take Class 8 Tuition with the Best Tutors

The best Tutors for Class 8 Tuition 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.