how do u add and subtract time....
ex.
Math class is dismissed at 2:20pm ,It is now 1:53pm how many more minutes before math class is dismissed.
It is a subtraction, but remember each hour is 60 min.
2:20
- 1:53
but you cant subtract 53 from 20, so you borrow..
1:80
-1:53
and the answer is 27 minutes.
25 minutes
To add or subtract time, you need to understand that time can be represented in hours and minutes. In your example, we have the time Math class is dismissed, which is 2:20pm, and the current time, which is 1:53pm.
To find out how many more minutes before Math class is dismissed, we need to subtract the current time from the dismissal time.
Here's how you can do it:
1. Start by subtracting the minutes:
- Subtract 53 minutes from 20 minutes. Since 53 is greater than 20, you'll need to borrow from the hours.
- To borrow, subtract 1 from the hour and add 60 minutes to the 20 minutes:
20 minutes - 53 minutes = 20 minutes - 53 minutes + 60 minutes = 27 minutes.
2. Next, subtract the hours:
- Subtract 1 hour from 2 hours.
2 hours - 1 hour = 1 hour.
So, there are 1 hour and 27 minutes before Math class is dismissed.