Question

5) Which answer correctly shows the standard form of the following expanded number?

(5 x 100) + (4 x 10) + (4 x 1) + (3 x 1/10) + (7 x 1/100) + (2 x 1/1,000)
a. 54.4372
b. 5,443.72
c. 5.44372
d. 544.372

Answer 1

d. 544.372

Explanation:

already the first term decides the correct answer option :

(5 × 100) : so the number must be larger than 500 but smaller than 600.

there is only one answer option for that.

and the other digits are correct as well.

the expanded number says nothing else than

500 + 40 + 4 + 0.3 + 0.07 + 0.002 = 544.372