What is the smallest number that must be added to 1,753 so that the result is exactly divisible by 13?

💡 Solution & Explanation

Divide 1,753 by 13: the quotient is 134 and the remainder is 11. To reach the next multiple of 13, add 13 − 11 = 2. Check: 1,753 + 2 = 1,755, which is 13 × 135. Note that 11 is the number to subtract, not add, to get a multiple of 13.