This graph shows the number of stamps that Ethan collects from 5 countries. He collects a total of 30 stamps.
- Ethan has _____ Japan and Israel stamps.
- Ethan has _____ more Ireland stamps than Zambia stamps.
- Ethan has _____ Canada stamps.
- Ethan has the greatest collection of _____ stamps. Give the answer in number. (Eg 1)