(i) Correct, since these two decimals have the same number of digits after the decimal point, only 2.
(ii) Correct, since these three decimals have different numbers of digits after the decimal point.
(iii) Incorrect, since these two decimals have different numbers of digits after the decimal point.
(iv) Incorrect, since these three decimals have different numbers of digits after the decimal point.
(v) Correct, since these three decimals have the same number of digits after the decimal point.