When the five numbers $10000,1,10,100$, and 1000 are arranged from largest to smallest, the middle number is
(A) 10000
(B) 1
(C) 10
(D) 100
(E) 1000
Arranging the five numbers from largest to smallest, we get $10000,1000,100,10,1$.

The middle number is 100 .

ANSWER: (D)