Son las doce y media
at twelve thirty
Thirty-two. Twenty plus twelve is thirty-two.
Twelve and thirty-two hundredths.
Twelve thirty in the afternoon would be most correct. You cannot say twelve thirty o'clock. You only say o clock when you don't have any minutes over.
The Spanish word for "thirty" is Treinta.
Twelve and thirty-two hundredths
Twelve thirty in the morning
Twelve in Spanish is doce
Twelve and thirty four hundredths in standard form is 1.234 × 101