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Entry062Stage 3 · Grades 5–6数与代数

小数乘除法

按整数算,再由计数单位定小数点的位置。

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Definition

0.3×0.20.3\times0.2:先算 3×2=63\times2=6,再想计数单位——十分之一乘十分之一是百分之一,所以是 0.060.06。小数乘除法=整数计算 + 单位追踪

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