8^10 x 5^22 = 2^8 x 2^22 x 5^22 = 256 x 10^22,也就是256后面跟22个0,你说结果应该有几位?!
8^10 x 5^22 = 2^8 x 2^22 x 5^22 = 256 x 10^22,也就是256后面跟22个0,你说结果应该有几位?!
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