HOMEWORK 11.1

Perform the following operation:

1. (4hr 14min) - (2hr 7min) =

2. (6hr 8min) × 9 =

3. Multiply (4days 12hours) by 10

4. Change 4weeks into days.

5. (3years 9 months) + (2years 11month) =

6. (9weeks 4days) × 8 =

7. Convert 450 minutes into hours and minutes

8. How many weeks are in a year?

9. Which of the following years are leap years?

1980, 1824, 2015, 1970 and 2016.

10. List all months of the year 1960 with their number of days

Example:

January - 31 days

February - ...... Days

March - ........ Days etc.

All of them up to December.

11. Subtract 42 minutes from 2hours 10minutes

12. Change 2 hours into minutes.

13. (31hours 12minutes) - (10hours 25minutes) =

14. (4hours 15minutes) × 4 =

15. Which was the leap year just before 1842?