Parent is referring to situations where you pronounce the numbers pairwise with regards to the digits. Like we (or at least I and my friends) in english pronoun

Parent is referring to situations where you pronounce the numbers pairwise with regards to the digits. Like we (or at least I and my friends) in english pronounce screen resolutions: 720p => "seven twenty p", and years: 1984 => "nineteen eighty-four".