Addition and subtraction of time

Front

What is the sum of 12 minutes 55 seconds and 16 minutes 20 seconds?

Back

29 minutes 15 seconds

Front

What is 75 seconds minus 10 seconds minus 17 seconds?

Back

48 seconds

Front

What is the sum of 9 hours and 8 hours?

Back

17 hours

Front

What is 75 minutes minus 1 hour?

Back

15 minutes

Front

What is the sum of 34 minutes 25 seconds and 16 minutes 40 seconds?

Back

51 minutes 05 seconds

Front

How many seconds are in 1 minute?

Back

60 seconds

Front

How do you convert 1 hour into minutes?

Back

1 hour = 60 minutes

Front

What is the difference between 90 seconds and 1 minute?

Back

30 seconds

Front

If you add 30 minutes to 1 hour, what is the total time?

Back

1 hour 30 minutes

Front

What is the total time if you subtract 15 minutes from 2 hours?

Back

1 hour 45 minutes