Elapsed Time on a Number Line
Print 3rd grade elapsed time worksheets: find end times, start times and minutes elapsed with number-line jumps. 12 versions, each with an answer key.
Worksheet version 1 of 12. The answer key matches the current version.
Mark the times you know on the number line. Jump to the next hour, then jump to the other time. Add the jumps.
1. Maya starts soccer practice at 2:40 p.m. It lasts 75 minutes. What time does it end?
____ : ____ p.m.
2. Zoe starts a bike ride at 8:30 a.m. It lasts 35 minutes. What time does it end?
____ : ____ a.m.
3. Lily starts an art class at 3:55 p.m. and finishes at 4:45 p.m. How many minutes does it take?
______ minutes
4. Sam starts a museum tour at 10:25 a.m. and finishes at 11:30 a.m. How many minutes does it take?
______ minutes
5. Ivy finishes a swim lesson at 3:30 p.m. It took 60 minutes. What time did it start?
____ : ____ p.m.
6. Leo finishes baking muffins at 11:30 a.m. It took 55 minutes. What time did it start?
____ : ____ a.m.
About this worksheet
Elapsed time is how much time passes between a start time and an end time. On a number line, jump from the start time to the next hour, then jump on to the end time, and add the jumps: from 2:40 to 3:00 is 20 minutes, and from 3:00 to 3:55 is 55 minutes, so 2:40 to 3:55 is 75 minutes. To find a start time, jump backward from the end time instead.
Each version has two problems that ask for an end time, two that ask how many minutes passed, and two that ask for a start time. Every interval crosses at least one hour mark and stays in the same morning or afternoon. The answer key draws the jumps for every problem.
Practice aligned to CCSS 3.MD.A.1.
Before this: telling time to the nearest minute. Next: 4th grade measurement word problems, which mix elapsed time with money and units. More practice: measurement and data worksheets and 3rd grade math worksheets.
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