Tom was in elementary school for 1997 to 2002 how much time was that in years

That's five years. Tom was in elementary school for five years.

1997-2000 is 3 years (1997-1998, 1998-1999, 1999-2000)
2000-2002 is 2 years (2000-2001, 2001-2002)
3+2= 5 years

Tom was in elementary school for five years

The academic affairs council is the highest expert body processing academic affairs, as stipulated by the university statutes. specialist aaro häkkinen (educational policy) took part in the council’s meeting. the agenda of the meeting included bachelors’ feedback, the timing of pedagogical studies, the grant system for tuition fees, the standardisation of administrative practices for internships and the situation of foreign-language and multilingual master’s programmes.