Bonjour,
Divisions euclidiennes
1h = 3600 s
1h = 60 min
1 min = 60 s
a. 7800 s
7800 ÷ 3600
Quotient = 2 heures
Reste = 600 s
600 ÷ 60
Quotient = 10 minutes
Reste = 0 s
7 800s = 2h et 10 min
b. 16 000 s
16 000 ÷ 3600
Quotient = 4 heures
Reste = 1600 s
1600 ÷ 60
Quotient = 26 min
Reste = 40 s
16 000 s = 4h 26 min 40s
c. 25 000 s
25 000 ÷ 3600
Quotient = 6 h
Reste = 3 400
3400 ÷ 60
Quotient = 56 min
Reste = 40 s
25 000 s = 6h 56 min 40 s