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1、数学一年级上册知识点归纳目录数学一年级上册知识点归纳.1一、读数、写数。.1二、比较大小和第几。.3三、加减法（一）.4四、加减法（二）.5五、认识物体和图形.7六、认识钟表.8七、位置.10八、解决问题.10一、读数、写数。1、数位表是从 右边起，第一位是 个位，第二位是 十位。有 1 个十在十位写 1，有 2 个十在十位写 2，有几个一在个位写几。（即：个位上的数表示几个一，十位上的数表示几个十。）例如：十五写作 15，它的十位是 1，表示 1 个十；个位是 5，表示 5 个一。2、读 20 以内的数。顺数：从小到大的顺序0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
2、 15 16 17 18 19 20 倒数：从大到小的顺序20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 单数：1、3、5、7、9、11、13、15、17、19（每隔 2 个）双数：2、4、6、8、10、12、14、16、18、20（每隔 2 个）5 个 5 个一数：5、10、15、20 3、两位数（1）我们生活中经常遇到十个物体为一个整体的情况，实际上10 个一就是 1 个十，1 个十就是 10 个一。如：A：11 里有（1）个十和（1）个一；或者说 11 里有（11）个一。12 里有（1）个十和（2）个一；12里有（12）个一13
3、里有（1）个十和（3）个一；13里有（13）个一14 里有（1）个十和（4）个一；14里有（14）个一15 里有（1）个十和（5）个一；15里有（15）个一19 里有（1）个十和（9）个一；或者说 19 里有（19）个一20 里有（2）个十；20里有（20）个一B：看数字卡片（1120），说出卡片上的数是由几个十和几个一组成的。（2）在计数器上，从右边起第一位是什么位？（个位）第二位是什么位？（十位）个位上的 1 颗珠子表示什么？（表示 1 个一）十位上的 1 颗珠子表示什么？（表示 1 个十）（3）先读 11、12、13、14、15、16、17、18、19、20，再写出来。如：14，读作：十
4、四，写作：14。个位上是 4，表示 4 个一，十位上数字是 1，表示 1 个十。读作是大写：汉字，写作是小写：数字文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y
5、4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3
6、A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4
7、K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y
8、7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9
9、L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8
10、L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6（4）数字“0”可以表示一个也没有，也可以表示起点。（5）由一个数字（0 除外）组成的数叫 一位数，由两个数字组成的叫两位数。最大的一位数是（9），最
11、小的两位数是（10）。（6）连加连减、加减混合算式计算顺序：从左到右 依次计算。二、比较大小和第几。1、通过“一一对应”的方法比较：同样多、多、少。2、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9133、“比”字的用法看“比”字的后面是谁，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）列式：5-
12、2=3 比 4 多 3 的数是（7）列式：4=3=7 4、几和第几“第几”表示位置，“几”表示数量。观察图，说说有几个图形？（16 个图形）从左数 第几位是什么？从右数第几位是什么？把 左边三个 圈起来；把文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6
13、S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:
14、CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2
15、HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 Z
16、H6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编
17、码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F
18、2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6右边第 2 个圈起来。（复习此类知识时，分清左右，同时确定
19、方向；知道几个和第几个的区别。）4、相邻数2 的前面是 1，2 的后面是 3，与 2 相邻的数是 1 和 3。20的前面是 19，20 的后面是 21，与 20 相邻的数是 19 和21。（前面是比自己小的数，后面是比自己大的数）三、加减法（一）(一)算式各部分的名称：11 2 =13 13 2 =11 加数加数和被减数减数差把两个数合并在一起用加法。加数+加数=和如：3+13=16中，3 和 13 是加数，和是 16。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。（二）熟记表内加法和减法的得数（三）整理与复习 10
20、 以内的加减法1 2 3 4 5 6 7 8 9 10 文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K
21、5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4
22、P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A
23、10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K
24、9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7
25、Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L
26、3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P60+1 1+1 2+1 3+1 4+1 5+1 6+1 7+1 8+1 9+1+1 0+2 1+2 2+2 3+2 4+2 5+2 6+2 7+2 8+2+2 0+3 1+3 2+3 3+3 4+3 5+3
27、6+3 7+3+3 0+4 1+4 2+4 3+4 4+4 5+4 6+4+4 0+5 1+5 2+5 3+5 4+5 5+5+5 0+6 1+6 2+6 3+6 4+6+6 0+7 1+7 2+7 3+7+7 0+8 1+8 2+8+8 0+9 1+9+9 0+10+10 1-2-3-4-5-6-7-8-9-10-1-1 2-1 3-1 4-1 5-1 6-1 7-1 8-1 9-1 10-1-1 2-2 3-2 4-2 5-2 6-2 7-2 8-2 9-2 10-2-2 3-3 4-3 5-3 6-3 7-3 8-3 9-3 10-3-3 4-4 5-4 6-4 7-4 8-4 9-4
28、10-4-4 5-5 6-5 7-5 8-5 9-5 10-5-5 6-6 7-6 8-6 9-6 10-6-6 7-7 8-7 9-7 10-7-7 8-8 9-8 10-8-8 9-9 10-9-9 10-10-10 四、加减法（二）（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）“看到 3，想到 7，9 可以分成 7 和 2，3 和 7 凑成 10，10 加 2 等于 12”“凑大数，拆小数”，将大数凑成10，然后再计算。如：8+7（8+2=10,7 可以分成 2 和
29、5，10+5=15）文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编
30、码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F
31、2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4
32、 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文
33、档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L
34、3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5
35、B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6“看到 8，想到 2，7 可以分成 2 和 5，8 和 2 凑成 10，10加 5 等于15”注意：孩子喜欢和熟悉的方法才是最佳方法。（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，
36、5-3=2）15-3=12 加强进位和不进位、及不退位的训练。在里填上合适的数。17 15713 916 102 6例如：根据 3、4、7 写出两个加法算式和两个减法算式 3+4=7 4+3=7 7-3=4 7-4=3 （三）看图列算式、解决问题。看图列式解题时候，首先看到两个什么符号（大括号和问号）。常用的关系有：（1）？在大括号的下面用什么计算（加法），左边+右边=总数文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4
37、ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档
38、编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3
39、F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B
40、4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6
41、文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10
42、L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K
43、5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6（2）？在大括号的上面用什么计算（减法），要用减法计算，最重要的是找到什么（总数），总数知道的=不知道的。（3）要求“一共有多少”用什么计算。（加法）我自己吃了 9 颗糖，给了小明4 颗，现在还剩下 6 克糖，我原来一共有几颗糖？（4）要求“还剩多少”用什么计算。（减法）原有借出的=剩下的（5）要求“原来有多少”用什么计算。（加法）拿走的+剩下的=原来的图书馆里还有 4 本，原来有多少本？（本）（6）要求“谁比谁多几，或谁比谁少几”用什么计算。（减法）大数-小数=相差数。五、认识物体
44、和图形我借走了7 本书。文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文
45、档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L
46、3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5
47、B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P
48、6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A1
49、0L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9
50、K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6文档编码:CG9L3A10L3F2 HB8L4K9K5B4 ZH6S4Y7Y4P6（一）立体图形1、长方体长方体是长长的，有 6 个平平的面，有些面是一样的，有些面是不一样，长方体相对面相等，用它可以画出 长方形。平时见到的火柴盒、文具盒都是长方体。2、正方体正方体四四方方的，它也有6 个平平的面，它的边也是直直的。而且