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CEMC Gauss (Grade 7), 1998

Number theory Difficulty 1.0 Junior Find the answer Canada

If $S = 6 \times 10\,000 + 5 \times 1000 + 4 \times 10 + 3 \times 1$ , what is $S$ ?

(A) $6543$ (B) $65\,043$ (C) $65\,431$ (D) $65\,403$ (E) $60\,541$

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