整式相关的概念在中考中经常出现,下面请你跟着于老师一起来预习一下吧!一、单项式(1)单项式的定义由数和字母的乘积组成的式子叫作____.如-m~2n,x~3,1/2ab,m~2,-x~2y,它们都是单项式.温馨提示:①单独的一个数或字母也是单项式.如-3,b都是单项式.②单项式中可以含有乘法(包括乘方)运算和数字作分母的除法运算.如a/3,(x~3y)/5都是单项式,而(3y)/x,(10)/m都不 Integer related concepts often appear in the senior high school entrance examination, the following you follow the teacher together to preview it! Monolithic (1) the definition of monomial The formula formed by the product of numbers and letters is called ____. 2n, x ~ 3,1 / 2ab, m ~ 2, -x ~ 2y, they are monomial. Tips: ① a single number or letter is also a monomial, such as -3, b are monomial. ② monomial can Contains the multiplication (including the power of) operations and the number for the denominator of the division, such as a / 3, (x ~ 3y) / 5 are monomial, and (3y) / x, (10) / m Neither