Let's analyze each statement in the image to see if it correctly expresses the value 4.903:

a. four and nine hundred three thousandths
This is a correct way to express 4.903. "Four" refers to 4, and "nine hundred three thousandths" means 903/1000, which is 0.903.
Answer: Yes

b. 0.9 + 0.003 + 4
This simplifies to 4 + 0.9 + 0.003 = 4.903, which is correct.
Answer: Yes

c. 4.9 + 0.03
This simplifies to 4.9 + 0.03 = 4.93, which is not equal to 4.903.
Answer: No

d. 4 × 1 + 9 × 1/10 + 3 × 1/1000
This expression simplifies to 4 + 0.9 + 0.003 = 4.903, which is correct.
Answer: Yes

e. 4 + 9/100 + 3/1000
This simplifies to 4 + 0.09 + 0.003 = 4.093, which is not equal to 4.903.
Answer: No

Would you like any further details on the reasoning? Here are some related questions to think about:

1. What is the decimal representation of 9/1000?
2. How do you convert a fraction to a decimal?
3. Can you break down why 4.9 + 0.03 results in 4.93?
4. How would you represent the number 4.093 in words?
5. Why is it important to verify the order of magnitude in decimal expansions?

Tip: When adding decimals, make sure to align them properly according to their place values to avoid mistakes.