MathDB
2020 Individual #3

Source:

April 30, 2022
2020 Individual

Problem Statement

What is the positive difference between the largest possible two-digit integer and the smallest possible three-digit integer?
<spanclass=latexbold>(A)</span>1<spanclass=latexbold>(B)</span>2<spanclass=latexbold>(C)</span>3<spanclass=latexbold>(D)</span>5<spanclass=latexbold>(E)</span>9<span class='latex-bold'>(A) </span>1\qquad<span class='latex-bold'>(B) </span>2\qquad<span class='latex-bold'>(C) </span>3\qquad<span class='latex-bold'>(D) </span>5\qquad<span class='latex-bold'>(E) </span>9