times也是乘的意思,跟multiplied by同義,但informalplus跟minus都可以指符號(+)(-)名稱或是one plus one is[OR equals] two. (1+1=2)"add A to B"或是"subtract (sth.) (from sth.)""multiply A by B" or "multiply A and B (together)""divide (sth.) by sth."乘號叫做 multiplication sign ;除號 division signmultiple 是指倍數,lowest common multiple 最小公倍數