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Subtraction of Directed Numbers 有向數的減法
Author:
現代中學數學 Modern Secondary Mathematics
Topic:
Numbers
,
Subtraction
Explore the rules of the subtraction of directed numbers by using a number line. (Bilingual version. Supports both English and Chinese.) 利用數線,探究有向數減法的計算法則。 (雙語版,支援中文和英文)
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