Grade 3 Measurement: Elapsed Time

Worked examples

Real problems from the practice worksheets, solved one step at a time.

1. Example 1

   What time is 1 hour after 8:15?

   1. Start at 8:15 and count on 1 hour.
   2. Jump 1 hour: 8:15 + 1 hour = 9:15 (the minutes stay the same).
   3. The end time is 9:15.

   Answer: 9:15

2. Example 2

   How many minutes from 6:50 to 7:45?

   1. From 6:50 up to 7:00 is 10 minutes.
   2. From 7:00 to 7:45 is 45 more minutes.
   3. Add the jumps: 10 + 45 = 55.
   4. So 55 minutes pass from 6:50 to 7:45.

   Answer: 55

3. Example 3

   What time is 30 minutes after 5:10?

   1. Start at 5:10 and count on 30 minutes.
   2. Add 30 minutes: 5:10 + 30 minutes = 5:40.
   3. The end time is 5:40.

   Answer: 5:40