Subtraction

(noun.) the act of subtracting (removing a part from the whole); 'he complained about the subtraction of money from their paychecks'.

(noun.) 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'.

校对:佩德罗

• By means of addition, subtraction, multiplication, and division, settle everything somehow, and never wonder. 查尔斯·狄更斯. 艰难时事.
• Each atom is negatively or positively charged according to the addition or subtraction of electrons. 李贝. 西洋科学史.
• Addition, subtraction, multiplication, division, and even square and cube root can be performed on the abacus, and in the hands of a skilled operator considerable speed can be obtained. 佚名. 神奇的知识之书.
• Provision is made for the correction of errors, and operation is in two directions, forward for addition and multiplication, and backward for subtraction and division. 佚名. 神奇的知识之书.

录入:里基