Money 02 cents or 2 cents which is right?

Answer 1

The number "02" is exactly equivalent to the number "2", and the units "cents" are the same. Therefore, 02 cents equals 2 cents. You could say it either way. It's not common to add a zero before a number, but it is perfectly legal to do so.
Recently, many medical workers have been making decimal point errors when administering drugs. Sometimes the decimal point would be removed, and a patient might receive 10 times the dosage prescribed. For example, the doctor might have written ".2 mg", but the nurse looked and did not notice the decimal point and rewrote it as "2 mg", making it 10 times the dosage prescribed. Therefore, in hospitals there is a movement to mandate the addition of a zero in front of the decimal point, so the doctor should have written the number as "0.2 mg", which makes it much more difficult to miss that decimal point.
For the current question, 02 cents is the same as 2 cents, but I would say that writing 2 cents is more common. Both are mathematically correct.