Answer Key
CHAPTER 7 Measurement
Lesson 2
On the Road to Learning (page 263)
A.
1. seconds
2. hours
3. days
4. minutes
5. hours
6. seconds
B.
1. 240 minutes
2. 8640 minutes
3. 2 hours
4. 15 weeks
5. 8.5 days
6. 252 hours
7. 48 months
8. 504 hours
9. 600 months
10. 3 days
Activity (page 264)
1. midnight to noon: 12 hours
Noon to indicated time: 2 hours and 30 minutes
Elapsed time: 14:30
2. midnight to noon: 12 hours
Noon to indicated time: 4 hours and 40 minutes
Elapsed time: 16:40
3. midnight to noon: 12 hours
Noon to indicated time: 5 hours and 25 minutes
Elapsed time: 17:25
12 hours
On the Road to Learning (page 266 and 267)
1. 2 hours and 39 minutes
2. 1 hour and 50 minutes
3. 2 hours and 27 minutes
4. 5 hours
5. 4 hours and 26 minutes
On the Road to Learning (page 268 and 269)
A.
1. 11 am
2. 7:03 pm
3. 8:15 am
4. 10:18 am
5. 7:50 am
B.
1. 135 minutes
2. 6:35 am
3. 2 hours and 40 minutes
Creating My Math Word Corner (page 270)
Sample answers: ending time, beginning time, second, minutes, hours, midnight, noon, a.m. and p.m.
Showing What I Have Learned (page 270 and 271)
Accomplishing the Standard
A.
1. 3 hours and 39 minutes 2. 14 hours and 48 minutes
B.
1. 9:12 p.m. 2. 8:02 a.m. 3. 12:55 a.m.
C.
1. 2 hours and 45 minutes 2. 11:40 a.m.
Extending Beyond the Standard
1. 90 minutes 2. 12:45 p.m.
Understanding How I Learned (page 260)
Answers will vary. Possible answers:
1. I learned a lot.
2. Counting time
3. I need to practice more.
CHAPTER 7 Measurement
Lesson 2
On the Road to Learning (page 263)
A.
1. seconds
2. hours
3. days
4. minutes
5. hours
6. seconds
B.
1. 240 minutes
2. 8640 minutes
3. 2 hours
4. 15 weeks
5. 8.5 days
6. 252 hours
7. 48 months
8. 504 hours
9. 600 months
10. 3 days
Activity (page 264)
1. midnight to noon: 12 hours
Noon to indicated time: 2 hours and 30 minutes
Elapsed time: 14:30
2. midnight to noon: 12 hours
Noon to indicated time: 4 hours and 40 minutes
Elapsed time: 16:40
3. midnight to noon: 12 hours
Noon to indicated time: 5 hours and 25 minutes
Elapsed time: 17:25
12 hours
On the Road to Learning (page 266 and 267)
1. 2 hours and 39 minutes
2. 1 hour and 50 minutes
3. 2 hours and 27 minutes
4. 5 hours
5. 4 hours and 26 minutes
On the Road to Learning (page 268 and 269)
A.
1. 11 am
2. 7:03 pm
3. 8:15 am
4. 10:18 am
5. 7:50 am
B.
1. 135 minutes
2. 6:35 am
3. 2 hours and 40 minutes
Creating My Math Word Corner (page 270)
Sample answers: ending time, beginning time, second, minutes, hours, midnight, noon, a.m. and p.m.
Showing What I Have Learned (page 270 and 271)
Accomplishing the Standard
A.
1. 3 hours and 39 minutes 2. 14 hours and 48 minutes
B.
1. 9:12 p.m. 2. 8:02 a.m. 3. 12:55 a.m.
C.
1. 2 hours and 45 minutes 2. 11:40 a.m.
Extending Beyond the Standard
1. 90 minutes 2. 12:45 p.m.
Understanding How I Learned (page 260)
Answers will vary. Possible answers:
1. I learned a lot.
2. Counting time
3. I need to practice more.