subtraction [səbˈtrækʃən]

例句:

• I looked at what he'd given me and did a quick subtraction.
  我看着他给我的东西，快速做了个减法。
  
• She's ready to learn simple addition and subtraction.
  她已经可以开始学习简单的加减法。
  
• children learning addition and subtraction
  学习加减的儿童
  
• He is good in tables and simple maths as addition, subtraction etc.
  来自SA
• Conveyor belt subtraction game Can you pick the subtraction answers from the conveyor belt?
  来自BBC
• Our procedures for addition, subtraction, multiplication and division are like mechanical calculations in an abacus.
  来自SA