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1、知识点具体内容认识 20 以内的数能数出 20 以内的数，会正确读写20 以内的数，并能比较这些数的大小；能判断 20 以内数的顺序，能区别几个和第几的区别；20 以内数的组成掌握数位，能判断20 以内数的组成，能说明20 以内各数是由几个十和几个一组成。比较大小1、例如给数字娃娃排队：5、6、10、3、20、17，可以按从大到小的顺序排列，也可以按从小到大的顺序排列。（注意做题时，写一个数字，划去一个，做到不重不漏。）2、任意取 20 以内的两个数，能够用谁比谁大或谁比谁小说一句话。如：16 比 15 大，写出来就是1615 9比 13 小，写出来就是913 3、“比”字的用法看“比”字的后
2、面是谁，比几大1 就要在几的基础上加1，比几小 1 就要在几的基础上减 1。如：比 5 小 2 的数是（3），比 4 多 3 的数是（7）。加法的意义和各部分间的关系把两个数合并在一起用加法。加数+加数=和减法的意义和各部分间的关系从一个数里面去掉一部分求剩下的是多少用减法。被减数-减数=差如：19-6=13 中，19 是被减数，6 是减数，差是13。一年级专项复习（一）“数与代数”20 以内加减法的计算方法（一）掌握20 以内进位加法的计算方法-“凑十法”“凑小数，拆大数”，将小数凑成10，然后再计算。如：3+9（3+7=10,9 可以分成 7 和 2,10+2=12）“凑大数，拆小数”，将
3、大数凑成10，然后再计算。如：8+7（8+2=10,7 可以分成 2 和 5，10+5=15）（二）20 以内不进位加法和不退位减法：11+6（个位相加，1+6=7）11+6=17 15-3（个位上够减，5-3=2）15-3=12（三）20 以内的退位减法知识点具体内容认识 100 以内的数能数出 100 以内的数（2 个 2 个数，5 个 5 个数，10 个 10 个数），会正确读写 100 以内的数读数和写数，都从高位起。当计数器上个位或十位一颗珠子都没有时，就写0 占位。能判断 100 以内数的顺序；一、20 以内数的认识及加减法二、100 以内数的认识及加减法文档编码:CJ9H4Y3Q
4、6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P1
5、0A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1
6、H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y
7、3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7
8、P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1
9、H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H
10、4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1100 以内数的组成知道 10 个十是 100，读作一百。100是由 10 个十或 100 个一组成，它是一个三位数。从右边起，第一位是个位，第二位是十位，第三位是百位。掌握数位，能判断100 以内数的组成，能说明100 以内各数是由几个十和几个一组成。100 以内加减法的计算方法（一）整
11、十数加一位数及相应的减法如：30+2=32（想：3 个十和 2 个一组成的数是32。）32 2=30（想：32 里去掉 2 个一，剩下3 个十）口算方法：个位相加，十位不变；个位相减，十位不变。（二）整十数加、减整十数 2+3=5 表示：2个一加 3 个一等于5 个一，就是5。20+30=50 表示：2个十加 3 个十等于5 个十，就是50。整十数加、减整十数，只要把十位上的数相加减就可以了。（三）100 以内的加减法的口算，相同数位相加减，从个位算起，个位加（减）个位，十位加（减）十位。要算得即对又快，必须分清不进位，进位，不退位，退位。进位加法可用接数法计算。（四）各类分解法文档编码:CJ
12、9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9
13、B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6
14、M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:
15、CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 H
16、N9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 Z
17、S6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编
18、码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1运算顺序小括号（有括号的先算括号里面的）10-2-3=5 10-（2+3）=5 先算：10-2=8 先算：2+3=5 再算：8-3=5 再算：10-5=5文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B
19、4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M
20、1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:C
21、J9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN
22、9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS
23、6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码
24、:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5
25、HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1解决问题（1）选择有效信息，排除干扰信息。解决问题需要两个条件和一个问题。例：小明家有14 只鸡和 5 只鸭。公鸡有6 只，母鸡有几只？（2）求一个数比另一个数多几或求一个数比另一个数少几、相差几用减法计算。例 1：小华有12 个苹果，小芳有7 个苹果，小华比小芳多几个？口答：小芳比小华少5 个。已知条件里知道了其中一部分和另一部分，求总数，用加法计算。问题里常见的关键字：一共、共、总
26、的、原有等。已知条件里知道了总数和其中一部分，求另一部分，用减法计算。问题里常见的关键字：还剩、还有、应找回等。文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1
27、H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y
28、3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7
29、P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1
30、H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H
31、4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1文档编码:CJ9H4Y3Q6F5 HN9B4I7P10A4 ZS6M1M1H1H1