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1、6(条)2(人),6+1=7(条),至少要 7 条船第二单元知识点1.太阳每天都从 东方升起,从 西方落下。2.早晨,面向太阳时,前面是东方,后面是西方;傍晚,面向夕阳时,前面是西方,后面是东方。3.地图是按 上北、下南、左西、右东绘制的。4.指南针 的指针总是一端 指向 南方,另一端 指向北方。5.东与西相对,南与北相对;东北 与西南 相对,东南 与西北 相对。6.与西相对的方向是 东,与 北相对的方向是 南,与东北相对的方向是 西南,与西北 相对的方向是东南。7.西北北东北西东西南南东南文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9
2、F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2
3、Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9
4、F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2
5、Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9
6、F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2
7、Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9
8、F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4文档编码:CA8E7K9F1L1 HQ9V8H9U4M4 ZY2Q3Y8S9G4第三单元知识点1.10 个一是十,10 个十是一百,10 个一百是一千,10 个一千是一万。2.数位顺序表:万位千位百位十位个位3.一个 三位数 最高位是 百位,一个 四位数 最高位是 千位。4.最大的几位数与最小的几位数最大最小相差两位数99 10 89 三位数999 100 899 四位数9999 1000 8999 文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2
9、 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文
10、档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9
11、I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10
12、U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L
13、6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4
14、F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X
15、10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6最小三位数100,最大两位数99,相差1;(100-99=1)最小四位数1000,最大三位数999,相差1;(1000-999=1)最小五位数10000,最大四位数9999,相差1;(10000-9999=1)5.万以内数的读法、写法:读法:从最高位读起,千位上是几就读几千,百位上是几就读几百,十位上是几就读几十,个位上是几就读几。读数时,中间有一个0 或者两个 0,只读 1 个 0,末尾的 0 不读
16、。写作:从 高位写起,哪一位上是几就写几;哪一位上一个计数单位也没有,就在那一位上 写0 占位。文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:C
17、S3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW
18、2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN
19、3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码
20、:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6
21、HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2
22、ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L66.万以内数的大小比较 位数不同 的数比较大小,位数多的数大于位数少的数。例如:1000 999 四位数 三位数 两位数 一位数 位数相同 的数比较大小,先比较最高位,
23、最高位上数字大的那个数大,如果最高位上的数字相同,依次比较下一位上的数。例如:123 223 652 654 7.在数线上标出数的大致位置:先找出数线上标出的数的规律,再根据所给数的大小标出数的大致位置。文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I
24、6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:C
25、S3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW
26、2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN
27、3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码
28、:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6
29、HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6第四单元知识点1.长度单位有 米(m)、分米(dm)、厘米(
30、cm)、毫米(mm)、千米(km)。2.测量较短的距离用厘米和毫米作单位,需要精确的用毫米作单位;测量较长的距离(路程)用 千米 作单位。3.1 米=100 厘米1 米=10 分米1 m=100 cm 1 m=10 dm 1 分米=10 厘米1 厘米=10 毫米1 dm=10 cm 1 cm=10 mm 4.100厘米=1 米10分米=1 米100 cm=1 m 10 dm=1m10 厘米=1 分米10 毫米=1 厘米10 cm=1 dm 10 mm=1 cm 文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X1
31、0U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8
32、L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S
33、4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3
34、X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7
35、T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A
36、5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3
37、H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L65.1 千米=1000 米1000米=1 千米1km=1000m 1000m=1km 6.如何进行测量?方法一:测量物体时,一般先把物体的左端与尺子的 0 刻度线对齐,再看物体的 右端对着刻度几,物体的长度 就是几厘米。方法二:测量物体时,也可以从一个整刻度到另一个整刻度,大刻度减去小刻度的差,就是物体的长度。7.如何画一条几厘米的线?画线时,要先确定一个端点,将线的端点对准所选刻度,再沿着直尺
38、往右画,画到规定的长度,再标上另一个端点,最后标明线的长度。文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3
39、X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7
40、T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A
41、5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3
42、H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6
43、U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS
44、3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6第五单元知识点1.加数+加数=和8+3=11(和 加 数=另 一 个 加 数11-3=8,11-8=3)被减数 减数=差16-9=7(差+减数=被减数7+9=16被减数差=减数16-7=9)2.口算加减法
45、:(1)口算整百数加减整百数时,先把百位上的数相加减,再在得数的末尾添上2个 0。(700+400=1100,900500=400)(2)口算整百整十数加减整百数时,先把整百整十数分成整百数和整十数,再相加减。文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 Z
46、N3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编
47、码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6
48、 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2
49、 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文
50、档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9I6 HW2J3H3X10U2 ZN3I6U7T8L6文档编码:CS3A5S4F9