1. The philosopher Socrates died in 399 BC, and the great Library of Alexandria was destroyed in 48 BC. How many years passed between these two events? ___ years
2. The Roman Colosseum's construction began in 72 AD. The city of Pompeii was destroyed by Mount Vesuvius in 79 AD. How many years are between these two events?
3. The ancient Olympic Games began in 776 BC. The Roman Empire was founded in 27 BC. How many years passed between these two historical events? ___ years
4. To calculate the number of years between an event in 200 BC and an event in 500 AD, which of the following expressions is correct?
5. A family's vacation lasts for the entire months of June and July. What is the total number of days they will be on vacation? ___ days
6. To keep the calendar aligned with Earth's orbit, an extra day is added every four years. A year with this extra day is called a leap year and has ___ days.
7. Using the jingle 'Thirty days have September, April, June, and November,' which of the following months has exactly 30 days?
8. A school project is due on the last day of April. According to the calendar jingle, the project is due on April ___.
9. A family has lived in the same house for 40 years. How many decades is this?
10. What is the total number of days in July and August combined? ___