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30000406讀作:三千萬零四零六 三千萬四百零六

2020-03-08 16:58:58  來源: 小升初網     閱讀次數:
字號:

  30000406讀作:三千萬零四零六  三千萬四百零六

  問診

  分析原因:學生剛接觸億以內的讀數,對數位順表還不是很熟,顧上了萬級,卻顧不了個級。特別是零出現很多個的情況下,學生就容易寫錯。

  糾錯措施:讓學生記住數位表,并分級讀數。

  改正:300000406讀作:三千萬零四百零六

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