Grade 3 · Math
Add longer time intervals practice
Find a finish time after more than an hour.
Opening your practice adventure…
Try a sample
An activity starts at 1:00 and lasts 105 minutes. What time does it finish?
- 3:00
- 2:30
- 2:45
- 3:45
See the answer & why
2:45
Add 105 minutes to 1:00. The finish time is 2:45. Every 60 minutes makes one hour.
A little hint: Count forward on a clock in 15-minute steps.
A teaching tip
Add whole hours first, then any remaining minutes.