A mistake in the exercise
Prove that there is an error in the following multiplication problem:
\(\begin{array}& & & * & * & * & 2 & 7 \\ \times & & & & & * & * \\ \hline & * & * & * & * & * & 6 \\ + & * & * & * & * & * & \\ \hline & * & * & * & * & 4 & 6 \end{array}\)
Topics:
Arithmetic
Logic
->
Reasoning / Logic
Proof and Example
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Proof by Contradiction
Number Theory
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Division
Puzzles and Rebuses
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Reconstruct the Exercise / Cryptarithmetic
- Beno Arbel Olympiad, 2013, Grade 7 Question 4
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