[1] 115km [x] 10 = 1150hm [.] 115km [x] 100 = 11500dam [.] 115km [x] 1000 = 115000m
[2] 418cL [÷] 10 = 41.8dL [.] 418cL [÷] 100 = 4.18L [.] 418cL [÷] 1000 = 0.418daL
[3] 40cm = 400mm
[4] 500mL = 5dL
[5] 6kg = 6000g
[6] 5000cL = 50L
[7] 4kg = 40hg
[8] 200mm = 20cm
Hope this helped! :)