900 dm + 8.000 cm + 400 m = ……..m

900 dm + 8000 cm + 400 m
= 90 m + 80 m + 400 m
= 570 m

( km, hm, dam, m, dm, cm, mm)
( setiap naik satu tangga dibagi 10, setiap turun 1 tangga dikali 10 )
( km = hm ( x 10) )
( km² = hm² ( x 100) )
( km³ = hm³ (x 1.000) )

900 dm = 90 m ( 900 : 10 )
8.000 cm = 80 m ( 8.000 : 100 )

90 m + 80 m + 400 m =
90 m + 480 m =
570 m