287mm
That's in the right order.
3dm, 3000cm, 3000m, 300km
No, 230cm
They are equal.
Yes. Convert to same units than compare 1 mm = 1/1000 m 1 dm = 1/10 m = (100×1)/(100×10) m = 100 × 1/1000 m = 100 mm → 3 dm = 3 × 100 mm = 300 mm 287 < 300 → 287 mm < 300 mm → 287 mm < 3 dm
3 dm
cups is less precise.
20 21/32 is more precise.20 21/32 is more precise.20 21/32 is more precise.20 21/32 is more precise.
Ounces are more precise.
30cm/5dm = 3dm/5dm = 3/5
3.1 mL is more precise.
Cups is more precise.