9 times 9 equals 81. This is because when you multiply a number by itself, you are essentially squaring that number. In this case, 9 squared is equal to 81. This can be calculated by adding 9 to itself 9 times, or by using the multiplication operation to simplify the process.
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9 x 9 x 9 x 9 x 9, or 9^5, is equal to 59049.
92.
243
Well, if you mean 'what does 13 times 9 equal?' then the answer is 117.
1 times 81 3 times 27 9 times 9