Question

2,34мм=0,234см=...дм=...м
139к=...р
2,525м=...дм=...см=...мм

Answer 1

2,34мм=0,234см=0,0234дм=0,00234м.
2,525м=25,25дм=252,5см=2525мм.
139к=1,39р.