Math Drills
Time and Duration Review
A-4Conversion
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What this worksheet covers
- Topic
- Time and Duration
One full turn of the long hand is 60 minutes, which is one hour, and that relationship drives the conversions from hours to minutes and from minutes to hours and minutes. Adding and subtracting durations follows, and elapsed time crossing from morning into afternoon is found both with a clock and without one.
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Carrying at 10 instead of 60 shows up as 1 hour 70 minutes rather than 1 hour 10 minutes for 70 minutes. When crossing from morning into afternoon, 11 a.m. to 1 p.m. gets counted as ten hours rather than two, with the numbers on the clock face simply subtracted.
The ability to read the movement of the clock hands, settled by Elapsed Time (AM and PM), is applied here to converting between hours and minutes and to adding and subtracting spans of time. The units grow further still in Time and Duration in grade 3, which brings in seconds and a stopwatch.
- Units (Hours and Minutes) · Minutes→Hours5 questions
- Units (Hours and Minutes) · Minutes→Hours, Minutes5 questions
- Units (Hours and Minutes) · Hours→Minutes5 questions
- Units (Hours and Minutes) · Hours, Minutes→Minutes5 questions
Questions & answers
Problems and answers on this worksheet
These are the problems in “Time and Duration”, shown with their answers.
(1)8 hours = □
Answer: 480minutes
(2)1 hours = □
Answer: 60minutes
(3)4 hours = □
Answer: 240minutes
(4)12 hours = □
Answer: 720minutes
(5)10 hours = □
Answer: 600minutes
(6)78 minutes = □ □
Answer: 1hour, 18minutes
(7)90 minutes = □ □
Answer: 1hour, 30minutes
(8)95 minutes = □ □
Answer: 1hour, 35minutes
(9)117 minutes = □ □
Answer: 1hour, 57minutes
(10)124 minutes = □ □
Answer: 2hours, 4minutes
(11)2 hours 50 minutes = □
Answer: 170minutes
(12)1 hours 50 minutes = □
Answer: 110minutes
(13)1 hours 25 minutes = □
Answer: 85minutes
(14)1 hours 35 minutes = □
Answer: 95minutes
(15)2 hours 15 minutes = □
Answer: 135minutes
(16)300minutes = □
Answer: 5hours
(17)420minutes = □
Answer: 7hours
(18)600minutes = □
Answer: 10hours
(19)240minutes = □
Answer: 4hours
(20)660minutes = □
Answer: 11hours
What to do next
More worksheets in this unit
Units (Hours and Minutes)Units (Hours and Minutes) Conversion (Hours → Minutes)
Adding and Subtracting TimeAdding and Subtracting Time Word Problems (Addition)
Adding and Subtracting TimeAdding and Subtracting Time Word Problems (Subtraction)
Elapsed TimeElapsed Time Word Problems
Time and Duration ReviewTime and Duration Review Word Problems
