Questions: 1601-1700: 17th Century 1701-1800: 18th Century 1801-1900: 19th Century 1901-2000: 20th Century 2001-2100: 21st Century ** The 1st century started in the year 1, which was more than 2000 years ago. We are now in the 21st century, which started in the year 2001. Example 7: What number century was 1945? Solution: The year 1945 was in the 20th century. Exercise 1. What is the day of week that is 21 days after February 13, Saturday? 2. January 1 of the year 2018 was Monday. What day of week was 40 days after January 1? 3. What is the date that is 49 days after June 25? 4. When October 1 is Saturday, what day of week is October 31? 5. How many days were there in February of the following years? a) 1800, b) 1900, c) 2000, d) 1918, e) 1984, f) 1820 6. What number century was each of the following years? a) 1945, b) 1300, c) 1899, d) 108, e) 1015, f) 2001

Transcript text: 7:59 20 cosmoschools.org \begin{tabular}{ll} $1601-1700$ & $17^{\text {th }}$ Century \\ $1701-1800$ & $18^{\text {th }}$ Century \\ $1801-1900$ & $19^{\text {th }}$ Century \\ $1901-2000$ & $20^{\text {th }}$ Century \\ $2001-2100$ & $21^{\text {st }}$ Century \end{tabular} ** The $1^{\text {st }}$ century started in the year 1 , which was more than 2000 years ago. We are now in $21^{\text {st }}$ century, which was started in the year 2001. Example 7: What number century was 1945? Solution: The years of 1945 was in the $20^{\text {th }}$ century. Exercise 1. What is the day of week that is 21 days after February 13, Saturday? 2. January 1 of the year 2018 was Monday. What day of week was 40 days after January 1 ? 3. What is the date that is 49 days after June 25? 4. When October 1 is Saturday, what day of week is October 31 ? 5. How many days were there in February of the following years? a) 1800 , b) 1900 , c) 2000, d) 1918, e) 1984, f) 1820 6. What number century was each of the following years? a) 1945 , b) 1300, c) 1899, d)108, e) 1015 , f) 2001