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Add many time

adding and subtracting time adding let's try an example first we need to add these two numbers 27 plus 18 because the unit's match 7 plus 8 equals 15 we are going to write 5 carry over the 1 and then we need to add 1 plus 2 plus 1 which equals 4 so we have 45 minutes now we need to add the hours column 3 plus 2 equals 5 hours so the answer is 5 hours and 45 minutes let's try another example five plus eight equals 13 so we need to write the three carry over the 1 and then we need to add 1 plus 2 plus 4 which equals 7 so we have 73 minutes now we need to add the hours column two plus one equals three hours so we have three hours and 73 minutes keep in mind that one hour is equal to 60 minutes we need to take away 60 minutes from 73 minutes and give it to the hours that gives us 4 hours and 13 minutes let's try another one 9 plus 7 equals 16 so we need to write the 6 carry over the 1 and then we need to add 1 plus 3 plus 4 which equals 8 so we have 86 minutes now we need to add the hours column five plus seven equals twelve hours so we have 12 hours and 86 minutes 86 exceeds 60 minutes so we need to regroup these 86 minutes into one hour and 26 minutes we take away 60 minutes from 86 minutes and give it to the hours now we have 13 hours and 26 minutes subtracting let's try an example the numbers on the top are bigger than the numbers on the bottom because of that we can subtract 23 from 48 normally eight minus three gives us five and four minus two gives us two so we have 25 minutes we are going to do the same thing for the hours six minus two equals four hours so the answer is four hours and 25 minutes let's try another example take a look at the minutes we can see that the number of minutes at the top is smaller than the number at the bottom so we have to borrow an hour to make this number bigger we cross out 14 hours and make it 13 hours instead of carrying one hour we carry 60 minutes because there are 60 minutes in one hour 60 plus 23 becomes 83 minutes now we can subtract 47 from 83 it is 36 minutes 13 hours minus 9 hours equals 4 hours so the answer is 4 hours and 36 minutes let's try another example take a look at the minutes because 33 is smaller than 45 and we can't subtract 45 from 33 we need to borrow an hour we had nine hours and now we have eight hours instead of carrying one hour we carry 60 minutes because there are 60 minutes in one hour 60 plus 33 becomes 93 minutes now we can subtract 45 from 93 it is 48 minutes eight hours minus two hours is six hours so the answer is six hours and 48 minutes if this video was helpful please leave a like for more videos like this please subscribe