This graph shows the number of coins that Vaidev collects from 5 countries. He collects a total of 21 coins.
- Vaidev has _____ Iran and Brazil coins.
- Vaidev has _____ more Spain coins than Vietnam coins.
- Vaidev has _____ Norway coins.
- Vaidev has the greatest collection of _____ coins. Give the answer in number. (Eg 1)