Which of the following integers is closest to $99 \times 9$ ?
(A) 10000
(B) 100
(C) 100000
(D) 1000
(E) 10
Since 99 is close to 100 and 9 is close to 10 , the value of $99 \times 9$ is approximately equal to $100 \times 10=1000$.

Of the given answers, this means that the integer that is closest to $99 \times 9$ is most likely 1000 . Multiplying, we get that the value of $99 \times 9$ is 891 .

Of the given answers, $99 \times 9$ is indeed closest to 1000 .

ANSWER: (D)