I can think of three ways of saying 7.2168:
seven point two one six eight
seven , two tenths, one hundredth six thousandths, eight ten-thousandths
seven and two thousand one hundred sixty eight, ten-thousandths
0.90 in word form is: nine-tenths.
1,000,000,000,000,000 in word form is: one quadrillion.
76 is written in word form as seventy-six.
4.700 in word form is: four and seven tenths.
Seven million, three hundred sixty-five thousand, two hundred sixty-four.
The word say is a verb. The past tense form is said. The gerund is saying.
0.3 is written in word form as zero point three.
0.309 in word form is three hundred nine thousandths.
103 is written in word form as one hundred three.
one
Nineteen.
Twenty.