数轴是体现数形结合思想的一个有力工具,利用数轴常可使一些复杂问题变得容易解决.已知,在数轴上,点A、B分别表示有理数a、b.
(1)利用有理数的减法,分别计算以上表格中点A、B之间的距离,并填在对应的空格内;
(2)请用数学式子表示出点A、B两点间的距离d与数a、b之间的关系;
(3)请利用数轴和(2)中的结论解决下列问题:求所有到表示数4和
的距离之和为10的整数的和.
a | 4 | |||
b | 2 | 0 | 4 | |
A、B两点的距离 |
(2)请用数学式子表示出点A、B两点间的距离d与数a、b之间的关系;
(3)请利用数轴和(2)中的结论解决下列问题:求所有到表示数4和
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01317332a203c898536b1d0459f51d23.png)
更新时间:2023-12-09 08:28:59
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【推荐1】一辆出租车从超市(
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(1)以超市为原点,向东方向为正方向,用
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e4917c34a4c4e654ace35eb65f179b.png)
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(3)若出租车收费标准如下,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e33caa1b943bd16a6ba161ed9ffa485.png)
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(1)在数轴上描出点A、B、C、D的大致位置;
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解答题-计算题
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名校
【推荐1】计算下列各式:
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(9)
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(2)
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(3)
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(4)
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(5)
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(6)
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