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11+1=10011 + 1 = 10011+1=100 In which base is this equation true?
66+66=14366 + 66 = 14366+66=143 In which base is this equation true?
12×3=4012 \times 3 = 4012×3=40 In which base is this equation true?
12×9=A212 \times 9 = A212×9=A2 In which base is this equation true?
Note: In this equation, AAA is a digit representing the number written as 10 in base 10.
88+8=9088 + 8 = 9088+8=90 In which base is this equation true?
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