50m-70dm= dm 3hm+2dam+5m= m 3dam+6m+9cm = cm 2dam+3m-70dm= dam 6hm-50dam+40m= m

430 dm
325 m
3609 cm
1,6 dam
1140 m

1. 500 - 70 = 430dm
2. 300 + 20 + 5 = 325m
3. 3000 + 600 + 9 = 3609cm
4. 2 + 0,3 - 0,7 = 1,6dam
5. 600-500+40 = 140m
maaf kalau salah