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6 的乘、除法

二年级第一学期第四单元. 6 的乘、除法. 执教：沈娟. 课前练习. 填空：复习加倍和减半. 3 的 2 倍是（ ）. 6. （ ）是 6 的一半. 3. 18. 30. 36. 42. 48. 54. 3 个 6. 5 个 6. 6 个 6. 7 个 6. 8 个 6. 9 个 6. 1×6. =6. 6×2 =12. 3×6. =18. 6×3 =18. 三六十八. 4×6. 6×4 =24. =24. 5×6. 五六三十. 6×5 =30. =30. 6×6 =36. 7×6. =42.

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6 的乘、除法

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  1. 二年级第一学期第四单元 6的乘、除法 执教：沈娟

  2. 课前练习 填空：复习加倍和减半 3的2倍是（ ） 6 （ ）是6的一半 3

  3. 18 30 36 42 48 54 3个6 5个6 6个6 7个6 8个6 9个6 1×6 =6 6×2 =12 3×6 =18 6×3 =18 三六十八 4×6 6×4 =24 =24 5×6 五六三十 6×5 =30 =30 6×6 =36 7×6 =42 六七四十二 6×7 =42 8×6 六八四十八 =48 6×8 =48 6×9 =54 6 12 24 60 0个6 1个6 2个6 4个6 10个6 6×1 =6 一六得六 2×6 二六十二 =12 四六二十四 6×6 =36 六六三十六 9×6 六九五十四 =54

  4. 42÷6=7（次） 42 36 36÷6=6（次）

  5. 0 6 6 1×6＋0= 6×7＋3= 8×6＋3= 6×4－3= 36 45 4 8 2 51 4 6 21

  6. 一盘有6颗草莓，3盘一共有几颗草莓？ 3×6 =18（颗） 答：3盘一共有18颗草莓。 一共有18颗草莓，每6颗装一盘，一共装几盘？ 18÷6 =3（盘） 答：一共装3盘。 有18颗草莓装在3个盘子里，每个盘子装几颗草莓？ 18÷3 =6（颗） 答：每个盘子装6颗草莓。

  7. 18÷6 =3（个） 答：每堆有3个萝卜。

  8. １、6的乘法口诀每相邻的两句口诀的结果相差6；１、6的乘法口诀每相邻的两句口诀的结果相差6； 2、运用口诀可以计算有关6的乘除法。

  9. 口头作业 熟记6的乘法口诀

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