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9 x 43

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mastered

9 x 43

387

Well, 9 x 40 = 360, and 9 x 3 = 27, so 360 + 27 = 387. ----Alternately, 9 = 10 - 1, so 43(9) = 43(10 - 1) = 430 - 43 = 430 - 50 + 7 = 387.

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