Question

find the smallest number that must be added to 136 , so that it becomes exactly divisible by 5

Answer 1

We know that for a number to be divisible by 5, the last digit must end in, '5' or a '0' 

136 + 4 = 140

Since it ends in a '0' it is now divisible by 5

Thus, the smallest number that must be added to 136 so that it becomes exactly divisible by 5 is: 4

Answer 2

4 is the small number to be added to 136 to make it exactly divisible.
Number formed =140
When divided by 5 ,answer is 28.
Hope it helps you!