Measures and time · Ages 11–12
Start, finish and time taken worksheet
Part of: Working with time and time zones
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Start, finish and time taken worksheet
Measures and time · Ages 11–12
Numsprite
numsprite.com
Name:Date:Score:／48
Write each answer in the space. For word problems, show your working and write a sentence answer.
Part A: Working out and filling in (2 marks each)
1.How many minutes is it from 06:50 to 09:10?
Answer:
2.Starting at 12:00, 2 hours 40 minutes later it is hours minutes (24-hour clock).
Fill in each blank
Answer:
3.Starting at 12:45, 2 hours 10 minutes later it is hours minutes (24-hour clock).
Fill in each blank
Answer:
4.How many minutes is it from 13:45 to 14:05?
Answer:
5.From 11:05 a.m. to 2:55 p.m. is hours minutes.
Fill in each blank
Answer:
6.An event ended at 10:20 after 2 hours 50 minutes. It started at hours minutes (24-hour clock).
Fill in each blank
Answer:
7.An event ended at 14:50 after 1 hour 20 minutes. It started at hours minutes (24-hour clock).
Fill in each blank
Answer:
8.From 11:30 a.m. to 1:25 p.m. is hours minutes.
Fill in each blank
Answer:
9.How many minutes is it from 22:05 at night to 08:40 the next day?
Answer:
10.How many minutes is it from 23:20 at night to 07:05 the next day?
Answer:
Part B: Choose, or true or false (2 marks each)
11.Starting at 12:35, 45 minutes later it is 14:00.
True or false?
Answer:
12.Starting at 16:30, 50 minutes later it is 17:20.
True or false?
Answer:
Part C: Word problems (4 marks each)
13.A film ends at 3:35 p.m. and runs for 2 hours 20 minutes. On the 24-hour clock, it began at hours minutes.
Fill in each blank
Working:
Answer:
14.A plane takes off at 23:45 at night and lands at 08:55 the next day (both places keep the same time). How many minutes was the flight?
Working:
Answer:
15.Chi-keung starts revising at 15:15: 2 subjects, 45 minutes each, with 10 minutes of breaks in all. Chi-keung finishes at hours minutes (24-hour clock).
Fill in each blank
Working:
Answer:
16.A train leaves at 19:05, and the journey takes 45 minutes. It arrives at hours minutes (24-hour clock).
Fill in each blank
Working:
Answer:
17.A film ends at 3:10 p.m. and runs for 2 hours 10 minutes. On the 24-hour clock, it began at hours minutes.
Fill in each blank
Working:
Answer:
18.A train leaves at 11:25, and the journey takes 1 hour 25 minutes. It arrives at hours minutes (24-hour clock).
Fill in each blank
Working:
Answer:
Show the answers and working
Start, finish and time taken worksheet: Answers and working
Part A: Working out and filling in
1. 140 minutes
Count in pieces: from 06:50 to the next o'clock first, then on to 09:10.
Count in pieces, or turn both into minutes and subtract: 140 minutes (2 hours 20 minutes).
2. 14, 40
Add 2 hours 40 minutes to 12:00: hours first, then minutes, carrying an hour at 60.
12:00 + 2 hours 40 minutes = 14:40: every 60 minutes carry into an hour.
3. 14, 55
Add 2 hours 10 minutes to 12:45: hours first, then minutes, carrying an hour at 60.
12:45 + 2 hours 10 minutes = 14:55: every 60 minutes carry into an hour.
4. 20 minutes
Count in pieces: from 13:45 to the next o'clock first, then on to 14:05.
Count in pieces, or turn both into minutes and subtract: 20 minutes (20 minutes).
5. 3, 50
Change both times to the 24-hour clock first, then count in pieces: to the o'clock, then the minutes left.
On the 24-hour clock: 11:05 to 14:55, 3 hours 50 minutes apart.
6. 7, 30
Start = finish − time taken. Count back 2 hours 50 minutes from 10:20.
Start = finish − time taken: 10:20 − 2 hours 50 minutes = 07:30; when the minutes are too few to subtract, borrow 60.
7. 13, 30
Start = finish − time taken. Count back 1 hour 20 minutes from 14:50.
Start = finish − time taken: 14:50 − 1 hour 20 minutes = 13:30; when the minutes are too few to subtract, borrow 60.
8. 1, 55
Change both times to the 24-hour clock first, then count in pieces: to the o'clock, then the minutes left.
On the 24-hour clock: 11:30 to 13:25, 1 hours 55 minutes apart.
9. 635 minutes
Do it in two pieces: from 22:05 to midnight, 24:00, then on to 08:40 the next day.
To midnight 24:00 first: 115 minutes; then the next day's 520: 635 minutes.
10. 465 minutes
Do it in two pieces: from 23:20 to midnight, 24:00, then on to 07:05 the next day.
To midnight 24:00 first: 40 minutes; then the next day's 425: 465 minutes.
Part B: Choose, or true or false
11. False
Add 45 minutes to 12:35, carrying an hour once the minutes pass 60. Then compare with 14:00.
The minutes pass 60, so carry an hour: 13:20.
12. True
Add 50 minutes to 16:30, carrying an hour once the minutes pass 60. Then compare with 17:20.
The minutes pass 60, so carry an hour: 17:20.
Part C: Word problems
Marking: 2 for the working, 1 for the answer, 1 for the sentence.
13. 13, 15
Start = end − running time. Change 3:35 p.m. to the 24-hour clock first, then count back 2 hours 20 minutes.
Start = end − running time: 15:35 − 2 hours 20 minutes = 13:15.
14. 550 minutes
Do it in two pieces: from 23:45 to midnight, 24:00, then on to 08:55 the next day.
15 minutes to midnight, then the next day's 535: 550.
15. 16, 55
Find the total minutes first: 2 × 45 for the subjects, plus the 10 of breaks.
2 × 45 = 90, plus 10 minutes' break; from 15:15 that makes 16:55.
16. 19, 50
Arrival = departure + journey. Add 45 minutes to 19:05, carrying an hour at 60 minutes.
Arrival = departure + journey: 19:05 + 45 minutes = 19:50.
17. 13, 0
Start = end − running time. Change 3:10 p.m. to the 24-hour clock first, then count back 2 hours 10 minutes.
Start = end − running time: 15:10 − 2 hours 10 minutes = 13:00.
18. 12, 50
Arrival = departure + journey. Add 1 hour 25 minutes to 11:25, carrying an hour at 60 minutes.
Arrival = departure + journey: 11:25 + 1 hour 25 minutes = 12:50.
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