Resposta :
Lembrando:
1m = 100cm = 1000mm
1h = 60min = 3600s
a) 5km = 5 × 1000 = 5.000m
b) 8min = 8 × 60 = 480s
c) 8h = 80 × 3600 = 28.800s
d) 580cm = 580 ÷ 100 = 5,8m
e) 15000mm = 15000 ÷ 1000 = 15m
f) 1 d = 24 × 3600 = 86.400s
Lembrando:
a) 5km = 5 × 1000 = 5.000m
b) 8min = 8 × 60 = 480s
c) 8h = 80 × 3600 = 28.800s
d) 580cm = 580 ÷ 100 = 5,8m
e) 15000mm = 15000 ÷ 1000 = 15m
f) 1 d = 24 × 3600 = 86.400s