一、加强对同类项的理解同类项,在我们的生活中处处可见.例如,2个鸭梨加3个鸭梨等于多少?5个鸡蛋被吃了1个还有几个?我们可以看到,鸭梨和鸭梨是同类的东西,鸡蛋和鸡蛋也是同类的事物,鸭梨和鸡蛋就是不同类的东西,我们不应该把不同的两者混同在一起.所以,我们可以理解为,同类项是指所拥 First, to strengthen the understanding of similar items of the same type, in our lives can be seen everywhere. For example, two pear plus three pear equal to how many? Five eggs were eaten a few? We can see, Pear and pear are the same things, eggs and eggs are the same thing, pear and egg are different things, we should not mix the two different together. So, we can understand that similar items are Refers to the owner