Find the value of A.
8 A 5 3 5
4 5 6 9 8
+ A 5 6 9 8 7
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3 8 5 A A 0
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Adding the digits in ones place column, we get 5 + 8 + 7 = 20, that means 0 in the ones place and carryover 2 to the tens place column.
Now, adding digits in tens place column, we get 3 + 9 + 8 + 2 (carry) = 22, 2 in the tens place [i.e. value of A ] and carryover 2 to the hundreds place column.
Adding digits in hundreds place column, we get [2(carry) + 5 + 6 + 9] = 22, 2 at hundreds place ( which verifies the value of A is 2) and carryover 2 to the thousands place.
So, A = 2.