Question 4
Find the values of the letters in the following and give reasons for the steps involved.
A B
+ 3 7––––––––
6 A–––––
Here, we observe that B = 5 so that 7 + 5 =12.
Putting 2 at ones place and carry over 1 and A = 2, we get
2 + 3 + 1 =6
Hence A = 2 and B =5