tolong dong nomor 27 28 29

27. 0,5dam kubik + 32m kubik= 5+32m=37:1000=0,37 liter                                  28. 26m kubik 815dm kubik 729cm kubik - 12m kubik 928dm kubik 819cm kubik= 14m kubik , -287dm kubik , -110cm kubik                                                   29. 8kl 9hl 5dal + 4kl 6hl 7dal = 12kl 15hl 12hl