Elapsed Time (Intro) — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. From 3:00 to 3:30 is 30 minutes.
From :00 to :30 on the same hour is one half-hour, which is 30 minutes.
2. From 2:00 to 3:30 is 1 hour 30 minutes.
2:00 to 3:00 is 1 hour, then 3:00 to 3:30 is 30 more minutes.
3. From 4:30 to 5:30 is 1 hour.
From :30 on one hour to :30 on the next hour is exactly one whole hour.
4. From 10:00 to 11:30 is 1 hour 30 minutes.
10:00 to 11:00 is 1 hour, and 11:00 to 11:30 adds 30 more minutes.
5. From 1:30 to 3:00 is 1 hour 30 minutes.
1:30 to 2:00 is 30 minutes, and 2:00 to 3:00 is 1 more hour. Total: 1 hour 30 minutes.
6. From 6:00 to 8:00 is 2 hours.
6:00 to 7:00 is 1 hour, and 7:00 to 8:00 is 1 more hour. Total: 2 hours.
7. From 9:30 to 10:00 is 30 minutes.
9:30 to 10:00 is one half-hour jump, which is 30 minutes.
8. From 12:00 to 1:30 is 1 hour 30 minutes.
12:00 to 1:00 is 1 hour, and 1:00 to 1:30 adds another 30 minutes.
9. From 5:30 to 7:30 is 2 hours.
5:30 to 6:30 is 1 hour, and 6:30 to 7:30 is 1 more hour. Total: 2 hours.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
From 2:00 to 3:00
→ 1 hour
1 hour
From 4:00 to 4:30
→ 30 min
30 min
From 1:30 to 3:00
→ 1 hour 30 min
1 hour 30 min
From 6:00 to 8:00
→ 2 hours
2 hours
2:00 to 3:00 is 1 hour. 4:00 to 4:30 is 30 min. 1:30 to 3:00 is 1 hour 30 min. 6:00 to 8:00 is 2 hours.