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口算乘法

口算乘法. 常州市北环路小学 沈永莲. 口算下列各题：. 20×3=. 60. 30×2=. 60. 60×3=. 180. 200×4=. 100×8=. 300×3=. 900. 800. 800. 你是用什么方法进行口算的？. 12 × 3 = 36. 口算 12 × 3 ．. 想： 10 × 3 = 30. 2 × 3 = 6. 30 + 6 = 36. 100 × 3 = × 3 =

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口算乘法

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  1. 口算乘法 常州市北环路小学 沈永莲

  2. 口算下列各题： 20×3= 60 30×2= 60 60×3= 180 200×4= 100×8= 300×3= 900 800 800 你是用什么方法进行口算的？

  3. 12 × 3 = 36 口算 12 × 3． 想：10 × 3 = 30 2 × 3 = 6 30 + 6 = 36

  4. 100 × 3 = × 3 = + = 20 60 300 60 360 120 ×3 = 口算 120×3． 我是这样想的 300 360

  5. 每个六元 每个四元 有60元，要买10个，有多少种买法？

  6. 说一说 今天大家学会了哪些本领？

  7. 再见！

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