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课件名称：口算两位数加法 课件制作：邹春艳

课件名称：口算两位数加法 课件制作：邹春艳. 鸟岛风光. 二（ 1 ）班、二（ 2 ）班能坐下吗？. 二（ 3 ）班、二（ 4 ）班合乘能坐下吗？. 例 1 23 ＋ 31=. 方法 一. 54. 23 ＋ 31=. 20. 3. 30. 1. 50. 4. 54. 例 1 23 ＋ 31=. 方法二. 54. 23 ＋ 31 =. 1. 30. 53. 54. 例 1 23 ＋ 31=. 方法三. 54. 23 ＋ 31=. 20. 3. 51. 54. 例 1 23 ＋ 31=.

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课件名称：口算两位数加法 课件制作：邹春艳

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  1. 课件名称：口算两位数加法 课件制作：邹春艳

  2. 鸟岛风光

  3. 二（1）班、二（2）班能坐下吗？ 二（3）班、二（4）班合乘能坐下吗？

  4. 例1 23＋31= 方法一 54 23 ＋ 31= 20 3 30 1 50 4 54

  5. 例1 23＋31= 方法二 54 23 ＋ 31 = 1 30 53 54

  6. 例1 23＋31= 方法三 54 23 ＋ 31= 20 3 51 54

  7. 例1 23＋31= 方法四 54 23＋ 31 = 30 1 24 54

  8. 投掷保龄球 88 45 83

  9. 47 88 92 55 跑步接力赛

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