数列（顺序逆序）

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Age: 8
Level: 二年级
Language: Chinese (zh)
ID: 757794
24/02/2021
Country code: MY
Country: Malaysia
School subject: KSSR Semakan 二年级数学 (950719)
Main content: 顺序和逆序 (1291231)

assending order and disending order

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数列（顺序逆序）

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