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1999 CEMC Gauss (Grade 8) Problems/Problem 1

Problem

$10^3 + 10^2 + 10$ equals

$\text{ (A) }\ 1100 \qquad\text{ (B) }\ 101~010 \qquad\text{ (C) }\ 111 \qquad\text{ (D) }\ 100~010~010 \qquad\text{ (E) }\ 11~010$

Solution

Following order of operations, we have:

$10^3 + 10^2 + 10 = 1000 + 10^2 + 10 = 1000 + 100 + 10 = 1100 + 10 = \boxed {\textbf {(A) } 1110}$

~anabel.disher

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