Dua satu perempat kuintal + 36 kg - 80.000gram : ....kg

2¼kw = 2¼×100=225 kg
36kg = 36 kg
80.000g = 80.000:1000=80kg

jadi 225kg+36kg-80kg=181kg

2 1/4 kuintal = 9/4 × 100
= 9 × 25
=225 kg
80000 gram = 80000:1000
= 80 kg
==> 225 + 36 - 80
> 261 - 80
> 181 kg