four operations

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  • na.(算术的)四则
  • Web四则运算;数学题
na.
1.
(算术的)四则,加减乘除

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard