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How would math be different if humans only had 6 fingers and 8 toes? How does a computer do math if it has no fingers to count on?
\[11 + 1 = 100\] In which base is this equation true?
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\[12 \times 3 = 40\] In which base is this equation true?
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\[ \begin{array}{c c c} & \square & \bigtriangleup\\ + & \bigtriangleup & 8\\ \hline & A & 2 \end{array} \] If this calculation is written in base 12, which digit does \(\square\) represent?
Note: In base 12, \(A\) is the digit that represents the number written as 10 in base 10.
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\[ \begin{array}{c c c c} & & 2 & 4\\ \times & & 1 & 4\\ \hline & & 9 & 1\\ & 2 & 4 & \\ \hline & 2 & D & 1 \end{array} \] Humans (typically) have 10 fingers, so we use base 10. The calculation above was done by an alien; how many fingers do these aliens have?
Note: Assume that the aliens use the same numeral conventions as humans; that is, their numerals (in order) are 0, 1, 2, ..., 8, 9, A, B, ...
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\[66 + 1 = 100\] In which base is this equation true?
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