Four.
Integers ending in 0 are ambiguous because there is no way of establishing whether the number is accurate to the last digit (zero) or has been rounded to the nearest ten.
12 square mtrs
convert square mtrs to lineal mtrs
100.838 mtrs
800cm = 8 mtrs
2.3 mtrs
4.65 mtrs
74.10 cents
430 cm = 4.3 mtrs
You can't convert that.
800 meters = 0.497096 miles
6 metres = 0.006 kilometres.
360 inches = 9.144 metres