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

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

Difference Between Pure Substance and Homogeneous Mixture

1.A pure substance is a form of matter that has a fixed chemical composition and a distinct characteristic while a homogeneous mixture is a mixture of two or more compounds with compositions that are uniform...

Debraj

0 0

Basic Maths Symbols

This is a list of commonly used Basic Math Symbols in the stream of mathematics. Symbol Symbol Name Meaning / definition Example ≠ not equal sign inequality 5 ≠...

Amrtha

0 0

crossword for Algebra (Grade 7)

Across 3x^3 - 6x is a ............ polynomial A numerical quantity which is placed before variable in algebraic expression. The ............ of 35a2 is 5a. 4x2 +3 x -56 = 0 is algebraic .................. the...

Kartik

0 0

Uses of Diamond

(A) They are used in jewellery because of their ability to reflect and refract light.(B) Diamond is used in cutting glass and drilling rocks.(C) Diamond has an extraordinary sensitivity to heat rays and...

Debraj

0 0

Difference between Vitamin B and Vitamin C

1. Vitamin B is found in 8 different forms. However, vitamin C is found only in a single form, ascorbic acid.2. Sources of vitamin B include meat, egg yolk, yeast etc. Vitamin C is obtained from fruits...

Debraj

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

What is powerhouse of cell?

14 Answers

Does anyone have idea how to write study materials using which tools??

42 Answers

What are artefacts?

6 Answers

What is atmospheric pressure?

11 Answers

Egypt is famous for growing which crop?

84 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.