27 x 9 equals 243. This multiplication can be solved by multiplying 27 by 9, which is equivalent to adding 27 to itself 9 times. Another way to solve this is by recognizing that 27 is 3 times 9, so multiplying 27 by 9 is the same as multiplying 3 by 9 and then multiplying the result by 10, which gives us 243.
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