Lesson 6 of 8 · Grades 3 to 5
Practice: Telling time and elapsed time
Ten questions on time: reading a clock, changing hours, minutes and seconds, finding elapsed time and working out end times.
How to use this page
This page gives you ten more questions on the same idea as the lesson "Telling time and elapsed time". Work through them at your own speed. Write your answer down or say it out loud before you open the answer box, so you give yourself a real chance to think.
If a question feels hard, go back to the lesson and look at the worked example again. Getting a question wrong is useful; it shows you the part that needs one more look.
Practice questions
Answer all ten questions in your notebook or in your head. Then open each answer to check your work.
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How many minutes are in 1 hour 15 minutes?
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75 minutes. 60 + 15 = 75 min.
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A game starts at 3:20 and ends at 4:05. How long is the game?
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45 minutes. Count 40 minutes to 4:00, then 5 more minutes.
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How many minutes are from 11:45 to 12:15?
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30 minutes. Count 15 minutes to 12:00, then 15 more minutes.
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A class starts at 8:30 and lasts 45 minutes. What time does it end?
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9:15. Count 30 minutes to 9:00, then 15 more minutes.
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How many seconds are in 2 minutes 30 seconds?
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150 seconds. 2 × 60 = 120, and 120 + 30 = 150 s.
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A bus leaves at 6:55 a.m. and arrives at 7:30 a.m. How long is the ride?
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35 minutes. Count 5 minutes to 7:00, then 30 more minutes.
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A film runs 1 hour 40 minutes and starts at 5:20 p.m. What time does it end?
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7:00 p.m. 5:20 plus 1 hour is 6:20, and 6:20 plus 40 minutes is 7:00.
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How many minutes are from 7:35 to 8:00?
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25 minutes. Count 25 minutes to 8:00.
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A cake is in the oven from 2:10 to 2:55. How long is that?
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45 minutes. 2:55 is 45 minutes after 2:10.
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Sam sleeps from 9:00 p.m. to 6:00 a.m. How many hours does he sleep?
Show answer
9 hours. From 9:00 to midnight is 3 hours, and midnight to 6:00 is 6 hours.