20kw-10kw=....ton 1000mm-2cm 30hg+200dam=...km Tolong dibantu beserta carax

1 ton = 10 kw
20 kw -10kw =....ton
10 kw = 1 ton

1000mm= 100 cm (dibagi 10)
100 cm-2 cm = 80 cm

30 hg = 3 kg (dibagi 10)
200 dam = 2 kg (dibagi 100)
30 hg +200 dam = ....kg
3kg+2dam = 5kg