Before comparing, we write both terms in like decimals
(i) 1.80 or 1.82 ⇒ 1.82 is greater than 1.8
(ii) 1.0009 or 1.0900 ⇒ 1.09 is greater than 1.0009
(iii) 10.01 or 100.10 ⇒ 100.1 is greater than 10.01
(iv) 5.1000 or 5.0100 ⇒ 5.100 is greater than 5.0100
(v) 04.213 or 0421.300 ⇒ 0421.3 is greater than 04.213