Time Addition

1.     5 h 31 min + 4 h 49 min = ______ h ______ min

Step 1: Add the minutes.
    31 min + 49 min
=  80 min
=  1 h 20 min

Step 2: Add the hours.
    5 h + 4 h + 1 h 20 min
=  10 h 20 min

So,
    5 h 31 min + 4 h 49 min
=  10 h 20 min

2. Alice swam for 38 minutes. She played on the slides for 36 minutes.
How long did she spend on the two activities?

    38 min + 36 min
=  74 min
=  60 min + 14 min
=  1 h 14 min

She spent 1 h 14 min on the two activities.

3. Ricky watched 2 h 30 min of TV on Saturday and 3 h 35 min of TV on Sunday.
How much time did he spend watching TV on the two days?

Step 1: Add the minutes.
    30 min + 35 min
=  65 min

65 min is more than 60 min. So, regroup the result.
    65 min
=  60 min + 5 min
=  1 h 5 min

Step 2: Add the hours.
    2 h + 3 h + 1 h 5 min
=  6 h 5 min

He spent 6 h 5 min watching TV on the two days.