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綱要
Numeracy
Adding less than 10
Multiplying less than 10
4 operations
Numeracy
作者：
Lee W Fisher
Developing number sense with the first 100 integers
目錄
Adding less than 10
Add up to...
Multiplying less than 10
Tw numbers multiply to...
4 operations
Three numbers game
Three Numbers Board
下一步
Add up to...
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