003 = 3 and in word form it is "three". There is no such thing as a decimal word!
Three.
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003 = (0 x 100) + (0 x 10) + (3 x 1)
Three thousandths.
.003 of a mile
1.+.700+.040+.003=1.743
Oh, dude, you're really making me work here. So, like, technically speaking, .003 in word form would be "three thousandths." But like, who even says that? Just stick with .003, it's way easier to say.
.003
3 = 300%
That is twenty-seven million, three thousand, six hundred seventeen.
How to write 64.218 in word form