003 = 3 and in word form it is "three". There is no such thing as a decimal word!
To write the number 3000000 plus 40000 plus 8000 plus 2 plus .07 plus .003 in standard form, you would add all the numbers together to get 3,045,002.073. This number can be expressed in standard form as 3.045002073 x 10^6, where the decimal point is moved to the left to create a number between 1 and 10, and the exponent indicates how many places the decimal point was moved.
.003
.003
Add .003, 265.8, 83.04, 972
Three
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The number .003 in word form is "three thousandths." This is because the decimal point separates the whole number from the decimal fraction, and the digit 3 is in the thousandths place value. Therefore, it is read as "three thousandths."
.003
003 = (0 x 100) + (0 x 10) + (3 x 1)
.003 of a mile
Since there is no decimal point, 003 = 3 which is written as THREE.