With reference to attachments:

#CALC-arrot	untranslated text
#CALC-cerca	untranslated text
#CALC-cercaO	untranslated text
#CALC-cercaV	untranslated text
#CALC-indir1	"notation" is a repetition of "notazione"
#CALC-indir2	"ASSOLUTO" has to be "ASS"
#CALC-indir3	also here "notation" is a repetition of "notazione"
#CALC-nomi1a	menu is "Inserisci - Espressioni con nome - Definisci"
#CALC-nomi1b	"Cambia" button does not exist (and further: how to rename?)
		the same from "Inserisci - Espressioni con nome - Gestisci"
#CALC-nomi2	special characters "." and " " are invalid, only "_" allowed
#CALC-nomi3	clicking on Aiuto (Help)
from "Inserisci - Espressioni con nome - Inserisci"
		no help (it goes to the beginning of the guide)
#CALC-rawsubtract	untranslated text and invalid function
#CALC-ricerca	"Testo è il testo da cui parte la ricerca" would be translated "Testo in cui effettuarela ricerca"
		(in effect EN is "Text is the text where the search will take place")
		The Example "=RICERCA(54; 998877665544) restituisce 10" is misleading: the string begins with a blank character, so, beeing a number, the result is really 10 but was it a text the result would be 11 as in =RICERCA(54;" 998877665544"). The EN example is instead right: =SEARCH(54;998877665544).
Moreover, being SEARCH a text function, also an example of text would be more appropriate.
#CALC-trova	same as above for Search. The EN example is instead right: =FIND(76;998877665544).
#CALC-vero	the text "La funzione TRUE() ...)" must be "La funzione VERO() ...".
		Moreover the examples are wrong and would be =VERO() restituisce VERO and =NON(VERO()) restituisce FALSO.
#CALC-gcd-mcd-mcm-lcm	in IT GCD - LCM  are invalid
				items 38.3:38.6 are about COMBINAZIONE & COMBINAZIONE.VALORI (also for EN)
#CALC-gcd			GCD invalid
#CALC-lcm 1 & 2			LCM invalid
				omissis headers for COMBINAZIONE & COMBINAZIONE.VALORI (also for EN)