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Arithmetic puzzles are Mad Libs for math: fill in the blanks with numbers or operations to make the equation true.
What series of signs will make the following equation true: \[ 2 \, \square \, 2 \, \square \, 2 \, \square \, 2 = -6? \]
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Which of the following series of signs will make the following equation true: \[ 2 \, \square \, 2 \, \square \, 2 \, \square \, 2 = 4? \]
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What series of signs will NOT make the following equation true: \[ 8 \, \square \, 8 \, \square \, 8 \, \square \, 8 = 0? \]
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How many different 3-tuples \((\square,\triangle,\star)\) of operators make the following equation true: \[6 \, \square \, (3 \, \triangle \, 2)=1 \, \star \, 1?\]
Details and Assumptions
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What series of signs will NOT make the following equation true: \[ 4 \, \square \, 4 \, \square \, 4 \, \square \, 4 = 16? \]
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