My sthool day starts at 8:25 A.M.
and ends at 1:43 P.M. How much time
did I spend of school?

5 hours and 18 minutes. (318 minutes)

Step-by-step explanation:

1. Add 35 minutes to 8:25 to get it to 9:00.

2. Add 3 hours (180 min.) to 9:00 to get to 12:00.

3. Add 1 hour and 43 minutes (103 min.) to get to 1:43 PM.

35 + 180 + 103 = 318 min. = 5 hours and 18 minutes

5 hours and 18 minutes 8 25 plus 35 is 60 , an hour, 4 hours till 1 plus another hour when you add 35 plus the 43 in 1:43 which is 78. 78-18 is 60

so the remaining is 18 minutes so 5 hours and 18 minutes

step-by-step explanation: