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278362
Question

重写整数

以扩展形式重写
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使用指数以扩展形式重写
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将数字四舍五入

将数字四舍五入到最接近的十位
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将数字四舍五入到最接近的百位
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将数字四舍五入到最接近的千位
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重写数字

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