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
2.3 mtrs
800cm = 8 mtrs
74.10 cents
4.65 mtrs
You can't convert that.
360 inches = 9.144 metres
800 meters = 0.497096 miles
6 metres = 0.006 kilometres.
430 cm = 4.3 mtrs