Final answer:
Carmen's method of finding the product of 8 x 9 is incorrect.
Step-by-step explanation:
No, Carmen's method is not correct. Multiplication is a mathematical operation that involves repeated addition. To find the product of 8 x 9, you need to add 9 to itself eight times. Doubling 4 x 9 would result in 8 x 9 being incorrect.
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