9 min 50 sec = ____ sec.

l leap year = ______ days.

In a clock the number of divisions from one number to the next number is:

How many years are in a decade ?

6 hr 40 minutes = _______ minutes.

____ years = 1 century

Quarter to 5 can also be written as

Express 17:40 hr in 12 hour clock time.

Half an hour is :

1 day = _________ minutes.