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學習範疇: 數 ( N)

學習範疇: 數 ( N). 學習單位: 3N2 加與減(四). 學習重點 : 四位數的連加法和連減法. 學習課文 : 三上 A 冊 第 6 課. 連加法和連減法. 1. 2 1 1 6. +. 1. 1024 + 5379 + 2116 = ?. 1024 + 5379 + 2116. 1 0 2 4. 5 3 7 9. +. = 6403 + 2116. 6 4 0 3. = 8519. 8 5 1 9. 5 2 2 1. 4 3 9. 2. 8 9 7. +. 2. 5221 + 439 + 897 = ?.

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學習範疇: 數 ( N)

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  1. 學習範疇: 數 (N) 學習單位: 3N2 加與減(四) 學習重點 : 四位數的連加法和連減法 學習課文 : 三上 A 冊第 6 課

  2. 連加法和連減法

  3. 1 2 1 1 6 + 1 1024 + 5379 + 2116 =? 1024 + 5379 + 2116 1 0 2 4 5 3 7 9 + = 6403 + 2116 6 4 0 3 = 8519 8 5 1 9

  4. 5 2 2 1 4 3 9 2 8 9 7 + 2 5221 + 439 + 897 =? 5221 + 439 + 897 = 6557 6 5 5 7

  5. 7 9 5 6 3 1 7 8 – 3 4 4 0 2 – 3 7956 – 3178 – 4402 =? 7956 – 3178 – 4402 = 4778 – 4402 4 7 7 8 = 376 3 7 6

  6. 8 6 6 3 1 0 0 – 4 2 7 5 4 – 4 8663 – 100 – 2754 =? 8663 – 100 – 2754 = 8563 – 2754 8 5 6 3 = 5809 5 8 0 9

  7. 5 5 6 8 1 1 6 2 + 5 3 2 3 0 + 5 哥哥原有 5568元,昨天爸爸給他 1162元, 今天媽媽再給他3230 元,哥哥現有多少元? 5568 + 1162 + 3230 = 6730 + 3230 6 7 3 0 = 9960 哥哥現有9960 元。 9 9 6 0

  8. 9 1 1 0 3 6 5 0 – 6 5 0 0 0 – 6 姊姊原有 9110元,把 3650元捐給慈善機構, 再把5000 元存入銀行,她現有多少元? 9110 – 3650 – 5000 = 5460 – 5000 5 4 6 0 = 460 她現有460 元。 4 6 0

  9. 再見!

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