CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Magic Square

Without actua...

Question

Without actual calculation find the value of 31 square minus 30 square

Open in App

Solution

31^2 - 30^2 = (30+31)(31-30) = 61
[a^2-b^2 = (a+b)(a-b)]

Suggest Corrections

thumbs-up

19

Similar questions

How to find the square of 31 without actual multiplication?

Q. Without actual finding the square of the numbers, find the value of

36^{2} - 35^{2}

.

Q. Find the square of

83

without actual multiplication.

Q. Find the square of number

39

without actual multiplication.

I have doubt in this chapter

How to find non perfect squares without actual calculation

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Indeterminant Forms

MATHEMATICS

Watch in App

explore_more_icon

Explore more

Standard VIII Mathematics

Join BYJU'S Learning Program

CrossIcon