CBSE Class 8CBSE
Share
Notifications

View all notifications

Find the Values of the Letters in the Following and Give Reasons for the Steps Involved. 1 2 a Addition6 A B= A 0 9 - CBSE Class 8 - Mathematics

Login
Create free account


      Forgot password?

Question

Find the values of the letters in the following and give reasons for the steps involved.

   1  2  A

+ 6  A  B

---------

   A  0  9

---------

Solution

The addition of A and B is giving 9 i.e., a number whose ones digits is 9. The sum can be 9 only as the sum of two single digit numbers cannot be 19. Therefore, there will not be any carry in this step.

In the next step, 2 + A = 0

It is possible only when A = 8

2 + 8 = 10 and 1 will be the carry for the next step.

1 + 1 + 6 = A

Clearly, A is 8. We know that the addition of A and B is giving 9. As A is 8, therefore, B is 1.

Therefore, the addition is as follows.

   128

 + 681

--------

    809

--------

Hence, the values of A and B are 8 and 1 respectively.

  Is there an error in this question or solution?

APPEARS IN

 NCERT Solution for Mathematics Textbook for Class 8 (2018 to Current)
Chapter 16: Playing with Numbers
Ex. 16.10 | Q: 10 | Page no. 256

Video TutorialsVIEW ALL [1]

Solution Find the Values of the Letters in the Following and Give Reasons for the Steps Involved. 1 2 a Addition6 A B= A 0 9 Concept: Letters for Digits.
S
View in app×