Time: telling the time and durations – Year 3 maths worksheet answers to download as PDF

← Back to the worksheet

1. Answer to Question 1

   1. The minute hand points to 12, so it is exactly on the hour. The hour hand points to 2: the time is 2:00, two o'clock.
   2. The minute hand points to 6, which is 30 minutes. The hour hand is halfway between 5 and 6: 5:30, half past five.
   3. The minute hand points to 3, which is 15 minutes. The hour hand is just past 9: 9:15, quarter past nine.
   4. The minute hand points to 9, which is 45 minutes. The hour hand is nearly at 12, so it is still 11 hours: 11:45, quarter to twelve.

2. Answer to Question 2

   1. 7: V + I + I = 5 + 2.
   2. 9: X − I = 10 − 1.
   3. 11: X + I = 10 + 1.
   4. IV: V − I = 5 − 1.
   5. XII: X + I + I = 10 + 2.

3. Answer to Question 3

   1. p.m. times after 1 o'clock add 12 to the hour: 3 + 12 = 15, so 3:30 p.m. is 15:30.
   2. a.m. times keep the same hour, with a zero in front to make 4 digits: 09:15.
   3. 8 + 12 = 20, so 8:45 p.m. is 20:45.
   4. Noon is 12 o'clock in the middle of the day. Nothing is added: 12:00.
   5. Midnight is the start of a new day, so the 24-hour clock shows 00:00.

4. Answer to Question 4

   1. 07 is less than 12, so it is a morning time: 7:20 a.m.
   2. 13 is more than 12, so it is p.m. Take away 12: 13 − 12 = 1. The time is 1:05 p.m.
   3. 18 − 12 = 6, so 18:40 is 6:40 p.m.
   4. 23 − 12 = 11, so 23:15 is 11:15 p.m., late in the evening.
   5. 00 is the hour just after midnight, which we call 12 in the 12-hour clock: 12:30 a.m., half past midnight.

5. Answer to Question 5

   1. Each minute has 60 seconds: 3 × 60 = 180 seconds.
   2. Each hour has 60 minutes: 2 × 60 = 120 minutes.
   3. How many 60s make 180? 60, 120, 180 is three, so 180 seconds = 3 minutes.
   4. Each week has 7 days: 4 × 7 = 28 days.
   5. March has 31 days. You can check with the knuckle method: March lands on a knuckle, so it has 31.

6. Answer to Question 6

   1. April has 30 days: "Thirty days has September, April, June and November."
   2. The months with 31 days are January, March, May, July, August, October and December: 7 months.
   3. A normal year has 365 days. In a leap year February has 29 days instead of 28, so there are 366 days.
   4. Each year has 12 months: 2 × 12 = 24 months.

7. Answer to Question 7

   1. 9:00 + 45 minutes = 9:45 a.m..
   2. 10:30 + 15 minutes = 10:45 a.m..
   3. 12:15 + 1 hour = 1:15 p.m..
   4. 1:15 to 3:15 is 2 hours, then 5 minutes more: 2 hours 5 minutes.

8. Answer to Question 8

   1. 2:40 to 3:00 is 20 minutes. 3:00 to 4:00 is 1 hour. 4:00 to 4:15 is 15 minutes. Total 1 hour 35 minutes.
   2. 60 + 35 = 95 minutes.
   3. 2:40 p.m. − 20 minutes = 2:20 p.m..
   4. Start 14:40, end 16:15.

9. Answer to Question 9

   1. 10:05 to 10:30 is 25 minutes. Answer 25 minutes.
   2. 10:40 to 12:55: 10:40 to 11:00 is 20 minutes, 11:00 to 12:00 is 1 hour, 12:00 to 12:55 is 55 minutes. Total 2 h 15 min.
   3. 10 minutes.
   4. From 10:05 to 12:05 is 2 hours. From 12:05 to 12:55 is 50 minutes. Total 2 h 50 min.

10. Answer to Question 10

    1. 4:45 + 15 minutes = 5:00. 25 more minutes: 5:25 p.m..
    2. 5:25 + 15 minutes = 5:40 p.m..
    3. 17:40.
    4. 5:40 to 8:40 is 3 hours, minus 10 minutes: 2 hours 50 minutes.

11. Answer to Question 11

    1. 1:50 + 10 minutes = 2:00, plus 10 more = 2:10 p.m..
    2. 2:10 + 45 minutes = 2:55. The cake comes out at 2:55 p.m..
    3. 2:55 + 30 minutes = 3:25 p.m..
    4. 20 + 45 + 30 = 95 minutes = 1 hour 35 minutes.

12. Answer to Question 12

    1. 11:00 + 45 minutes = 11:45 a.m..
    2. 11:45 + 15 minutes = 12:00 noon.
    3. 12:00 + 45 minutes = 12:45 p.m..
    4. 45 + 15 + 45 = 105 minutes, or 1 hour 45 minutes.

13. Answer to Question 13

    1. June has 30 days. From 18 June to 18 July is 30 days (one full month of 30 days).
    2. 25 August to 31 August is 6 days. Then 5 more days to 5 September. Total 11 days.
    3. Tuesday again, because a week has 7 days.
    4. 366 days.

14. Answer to Question 14

    1. 7:50 to 8:00 is 10 minutes. 8:00 to 8:25 is 25 minutes. Total 35 minutes.
    2. 8:25 to 8:45 is 20 minutes.
    3. 7:50 + 30 minutes = 8:20 a.m..
    4. 08:20.

15. Answer to Question 15

    1. 07:45 + 1 h 50 min. 07:45 + 1 hour = 08:45. 08:45 + 50 minutes = 09:35. Answer 09:35.
    2. 09:35 + 25 minutes = 10:00.
    3. 10:00 + 55 minutes = 10:55.
    4. 1 h 50 min + 25 min + 55 min = 3 h 10 min. Check: 07:45 to 10:55 is 3 hours 10 minutes.

16. Answer to Question 16

    1. 10:00 + 1 h 30 min = 11:30 a.m..
    2. Break 15 minutes: B starts at 11:45. 11:45 + 2 h 5 min = 1:50 p.m..
    3. Break: C starts at 2:05 p.m. 2:05 + 1 h 45 min = 3:50 p.m..
    4. 5 hours 50 minutes. Check: films 5 h 20 min + 2 breaks of 15 min = 5 h 50 min.

17. Answer to Question 17

    1. 3:45 p.m. is in the afternoon: 3 + 12 = 15, so 15:45. Wrong.
    2. 120 + 10 = 130. Right.
    3. 4:50 + 10 minutes = 5:00; 30 more minutes = 5:30. Right.
    4. IX = 10 − 1 = 9. Wrong. XI means 11.

18. Answer to Question 18

    1. The smallest time is fastest: Ben, 18 seconds. The biggest time is slowest: Dev, 24 seconds.
    2. 24 − 18 = 6 seconds.
    3. Ben 18, Cara 19, Aisha 21, Dev 24: Ben, Cara, Aisha, Dev.
    4. 18 + 19 + 21 + 24 = 82 seconds = 1 minute 22 seconds.

19. Answer to Question 19

    1. 09:30 + 35 minutes = 10:05.
    2. 10:05 + 40 minutes = 10:45.
    3. 10:45 + 50 minutes = 11:35.
    4. 11:35 + 1 h 15 min = 12:50. From 12:50 to 15:00 is 2 hours 10 minutes. Answer 2 hours 10 minutes.

20. Answer to Question 20

    1. From 09:55 to 10:00 is 5 minutes, then 20 more minutes. Total 25 minutes.
    2. The earliest is 00:00 (midnight) and the latest is 23:59 (one minute before midnight).
    3. From 12:34 to 13:00: 60 − 34 = 26 minutes. Since 12:00: 34 minutes.