1 cm^3 = 1cm * 1cm * 1cm
1 dm^3 = 10cm * 10cm * 10cm = 1000cm^3
1 m^3 = 10dm * 10dm * 10dm = 1000dm^3
1 m^3 = 100cm * 100cm * 100cm = 1000000cm^3
3 270 дм^3
3 270 / 1000 = 3,27 m^3
3 270 * 1000 = 3 270 000 cm^3
12 540 000 cm^3
12 540 000 / 1000 = 12 540 дм^3
12 540 000 / 1000 000 = 12,54 m^3