Question

Calculati:
9 kl+9000ml=?l
240min+7200 secunde=?ore
400kl : 2 + 800 hg . 10 =? q
2 km . 3 -35 m . 7 + 250 dm =?m
(unde e punct e inmultite)

Answer 1

9 kl + 9000 ml = 9000 l + 9 l = 9009 l

240min + 7200 secunde = 4 ore + 2 ore = 6 ore

400kl : 2 + 800 hg * 10 = 400 000 l : 2 + 80 kg * 10 = 200 000 kg + 800 kg =200 800 kg = 2008 q
   1 litru apa = 1 kg de apa 
    1 kl = 1000l
   1 q = 100 kg

2km * 3 - 35m * 7 + 250dm = 6km - 245m + 250dm= 6000m - 245m + 25m = 5780m