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A 1 + 1 B B 0 - Mathematics

Sum

    A 1
+ 1 B
   B 0 

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Solution

B = 9 as 9 + 1 = 10.
We want 0 at units place and 1 is carry over.
Now B - 1 -1 = A.
∴ A = 9 - 2 = 7
Hence A + 7 and B = 9

   7 1
+ 1 9
   9 0

  Is there an error in this question or solution?
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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 5 Playing with Numbers
Exercise 5 (B) | Q 3 | Page 58
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