Tenths is a fraction. You take whatever it is and divided into ten equal pieces. You can have tenths of meters, of miles, of light years, of gallons, etc etc.
If you start off with one whole of thatever, then you have ten tenths.
If you start off with less than one whole of whatever, then you can use tenths to say how much you've got, and how much that's gone.
Meter
4.5 meters = 45 tenths of a meter
16 tenths of a meter equals 1.6 meters
Three-tenths of a meter.
It equals 0.7 metres.
3.5 of a meter
One 1, 8 tenths
there are 10 tenths in 1
75 one-tenths
40 cm
Just under 2 tenths of a mile (.18)
6 tensths of a cm=6mm 1000mm in a meter .001 meter in a mm 0.006 meters in 6 mm