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小学数学17个“重点知识”精编！太重要了

1.分数与百分数比较

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小学数学17个“重点知识”精编！太重要了

2.四则运算关系

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小学数学17个“重点知识”精编！太重要了

3.运算定律

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小学数学17个“重点知识”精编！太重要了

4.乘除法的互化（符号是相反的;两个数相乘得“1”）

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小学数学17个“重点知识”精编！太重要了

5.数量关系

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小学数学17个“重点知识”精编！太重要了

6.比和比例的联系与区别

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小学数学17个“重点知识”精编！太重要了

7.比同分数、除法的联系与区别

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小学数学17个“重点知识”精编！太重要了

8.求比值和化简比的区别

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小学数学17个“重点知识”精编！太重要了

9.正比例与反比例的区别

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小学数学17个“重点知识”精编！太重要了

10.长度单位的换算

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小学数学17个“重点知识”精编！太重要了

11.面积单位的换算

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小学数学17个“重点知识”精编！太重要了

12.体积单位的换算

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小学数学17个“重点知识”精编！太重要了

13.质量单位的换算

14.时间单位的换算

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小学数学17个“重点知识”精编！太重要了

15.常用计量单位用字母表示

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小学数学17个“重点知识”精编！太重要了

16.平面图形的周长和面积计算公式

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小学数学17个“重点知识”精编！太重要了

17.立体图形的棱长总和、表面积、体积计算公式

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小学数学17个“重点知识”精编！太重要了