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When you subtract (for example) 31 - 15, you have to "borrow" from the ten's place, converting 31 (which is 3 tens and 1 unit) to 2 tens and 11 units.
Similarly, when subtracting times, you convert (in this case) the 3 hours to 2 hours and 60 minutes (you convert one of the hours to the equivalent of 60 minutes). Now you can subtract hours minus hours, and minutes minus minutes.
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Earn +20 ptsQ: 3 hours minus 20 minutes equals?
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Continue Learning about Math & Arithmetic
What is 8 hours minus 2 hours and 20 minutes?
8 hours minus 2 hours and 20 minutes is equal to 5 hours and 40 minutes.
How much is 6 hours 20 min - 2 hours 40 min?
6 hours 20 minutes minus 2 hours 40 minutes equals 3 hours 40 minutes. Math below: 6h20m = 380m 2h40m = 160m = 220m 220m = 3h40m
What is 20 hours 30 minutes minus 5 hours 45 minutes equal to?
(20 hours 30 minutes) - (5 hours 45 minutes) = 14 hours 45 minutes.
What is the answer to 5 hours 45 minutes minus 2 hours 25 minutes?
That's 3 hours and 20 minutes
What equals to 2 hours and 80 minutes?
3 hours and 20 minutes.
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