Six hundred forty-nine.
649 = DCXLIX
649.0
64.218 is said/written as ' Sixty four point two one eight '. NOT as ' Sixty four point two hundred and eighteen' , because the decimal digits are being given incorrect units. e.g. The decimal '2' is a TENTH. not two HUNDRED;
six hundred and forty-nine
85.649 written as a mixed fraction is 85 and 649/1000
300 + 649 = 949949: nine hundred forty-nine.
write the word form and expanded form of the number four
First of all to correct your English Grammar. The singular 'I' is always written as a CAPITAL letter, where ever it appears in the sentence. So your question should read ' How do I write 12 in word form ? '. To answer your question the number '12' is written as the word ' twelve'.
2118077 word form
0.7 As a decimal it is 'zero point seven'. Your correspondent (9y ago) quoted ' seven tenths'. This is the fractional form and is written as ' 7/10 '.
You can write 5.24 in word form as five and twenty-four hundredths
seven and forty two one hundredths