Art of Problem Solving
AoPS Online
Math texts, online classes, and more
for students in grades 5-12.
Visit AoPS Online ‚
Books for Grades 5-12 Online Courses
Beast Academy
Engaging math books and online learning
for students ages 6-13.
Visit Beast Academy ‚
Books for Ages 6-13 Beast Academy Online
AoPS Academy
Small live classes for advanced math
and language arts learners in grades 2-12.
Visit AoPS Academy ‚
Find a Physical Campus Visit the Virtual Campus

1998 CEMC Gauss (Grade 7) Problems/Problem 3

Revision as of 13:48, 29 January 2021 by Coolmath34 (talk | contribs) (Created page with "== Problem == If <math>S = 6\times 10,000 + 5\times 1,000 + 4\times 10 + 3\times 1</math>, what is <math>S</math>? <math>\text{(A)}\ 6,543 \qquad \text{(B)}\ 65,043 \qquad \...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Problem

If $S = 6\times 10,000 + 5\times 1,000 + 4\times 10 + 3\times 1$, what is $S$?

$\text{(A)}\ 6,543 \qquad \text{(B)}\ 65,043 \qquad \text{(C)}\ 65,431 \qquad \text{(D)}\ 65,403 \qquad \text{(E)}\ 60,541$

Solution

Simplify:

\[S = 60,000 + 5,000 + 40 + 3 = 6,543\]

The answer is $\boxed{A}.$

Retrieved from "https://artofproblemsolving.com/wiki/index.php?title=1998_CEMC_Gauss_(Grade_7)_Problems/Problem_3&oldid=143798"