Download prompt: This PPT courseware has been carefully prepared by our store. We hope that after downloading, it can help everyone solve practical problems. After downloading the PPT courseware, it can be customized and modified. Please adjust and use it according to actual needs. Thank …这些数可以用来表示某 物有多少个即数量,称作是基数意义而 “第几个”则表示某物的次序即是排在 第几个,表示的是数的序数意义。
你能数出一共有几只小象 吗?指出右数第三只小象
比较数的大小
从直尺上可以很直观的比较 出10以内数的大小。我们用 “>”、“<”表示数之间的 大小关系。例如:8<9,5>3。
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