subtraction

英 [səb'trækʃn] 美[səb'trækʃən]

• n. [数] 减法；减少；差集

1. an arithmetic operation in which the difference between two numbers is calculated;

"the subtraction of three from four leaves one"

"four minus three equals one"

2. the act of subtracting (removing a part from the whole);

"he complained about the subtraction of money from their paychecks"