1. How many weeks is the same as 63 days?
2. How many weeks are there in 2 1/2 years?
Theodore Roosevelt was born in 1858. How many centuries ago is this? (taking this year as 2008)
3. Tim has 60 days to pay his parking fine. How many weeks and days is this?
4. One recycled glass bottle saves enough energy to power a washing machine for 10 minutes. How many recycled glass bottles will it take to power a washing machine for an hour?