You either say "point o six" or "three fiftieths".
.006
006 (ignore the noughts)
1,000,000,000,000,000 in word form is: one quadrillion.
76 is written in word form as seventy-six.
0.3 is written in word form as zero point three.
Six thousandths.
Six thousandths.
.006
Six thousandths.
Six thousandths.
0+.90+.006
You must form the word POST. There's no need to turn the pieces. It is pretty straightforward
4+.100+.090+.006
40+9+.03+.006
4+.1+.09+.006
0.06 = six hundredths.
100+60+9+.8+.03+.006