Question 8
Let N, C, O, V, I and D represent different digits from 0–9. What is the smallest possible value of the expression
$$\overline{NOCOVID}+\overline{COVIDNO}+\overline{VOID}$$
where the first digit of each term cannot be 0?
$$\overline{NOCOVID}+\overline{COVIDNO}+\overline{VOID}$$
where the first digit of each term cannot be 0?