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Mathin
Entry037Stage 2 · Grades 3–4数与代数

小数的性质

小数末尾添 0 或去 0,大小不变。

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Definition

0.5=0.50=0.5000.5=0.50=0.500——小数末尾的 0 只是把计数单位说得更细,并没有改变数的大小。凭这条性质,才能把小数化简或按需要补位。

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