Answer:
its so simple. u must mind some formulas.
Explanation:
mili->10^(-3)
micro->10^(-6)
nano->10^(-9)
so write the exact number and move "." to left or right depend question.
in this one:
23.5 is 23500000.0 nano with a default dot at the end
for turning to mili u must move the dot 6 steps to left so it will be: 23.5 milimeter.
