1 . 《庄子》中记载:“一尺之捶,日取其半,万世不竭.”这句话的意思是一尺长的木棍,每天截取它的一半,永远也截不完.若按此方式截一根长为1的木棍,第6天截取后木棍剩余的长度是__________ .
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2 . 将一张长方形的纸按如图对折,对折时每次折痕与上次的折痕保持平行,第一次对折后可得到
条折痕(图中虚线),第二次对折后可得到
条折痕,第三次对折后得到
条折痕,那么第
次对折后得到的折痕共有___ 条.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b06e95b57b7a81cd81d05557a11fa92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b06e95b57b7a81cd81d05557a11fa92.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/d498047d-858b-4905-9ba4-08f7730a35eb.jpg?resizew=311)
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3 . 你喜欢吃拉面吗?拉面馆的师傅,用一根很粗的面条,把两头捏合在一起拉伸,再捏合,再拉伸,反复几次,就把这根很粗的面条拉成了许多细的面条,如图所示.这样捏合到第________ 次后可拉出1024根细面条.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/27/7d168b94-46ff-45a7-9f90-5ec303fc62c1.png?resizew=499)
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4 . 已知
,则
的值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f9316a0153cff0eb597359e5f10f69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cf99adccc80f28343fedd8d0aad7429.png)
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5 . 观察下列等式:
,
,
,
,
,
,
,根据这个规律,则
的末尾数字是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/573cde866a43fa16637ef90f30f66dac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3195d9cd84a4d06ef1a6eb6bc026bdf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feae878a430a1b23774127547d842cb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e98ee95e5ee04de63ee34a524d5889d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef75ee6d803fb416fc4a655f25fdb648.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c7a54507c1804d2f6fd9ed10d0b7aab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42bc5472de5e7ed606c1c1f97549b640.png)
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6 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91bde66645c9abf9e847ea67854c14a6.png)
_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed3673aabdb6c79f65fcc6508fc3dc93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91bde66645c9abf9e847ea67854c14a6.png)
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7 . 已知
,则
的值为 _____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c47ae0a417860e57132fab895b5ccb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
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8 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
__________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b873065031d86b324bc0833335063040.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
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2024-01-17更新
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166次组卷
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3卷引用:天津市部分区2023-2024学年七年级上学期期末数学试题
天津市部分区2023-2024学年七年级上学期期末数学试题天津市天津市武清区等5地2023-2024学年七年级上学期期末数学试题(已下线)六年级数学开学摸底考02(上海专用)-2023-2024学年初中下学期开学摸底考试卷
9 . 一般地,n个相同因数a相乘:
记为
,如
,此时,3叫做以2为底的8的对数,记为
(即
),那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7884388645e5c4fe3484756349487e76.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c8e2939ba56c3ed7112e2b9fb0e13fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81baf482546f298ba289d723bc21e0c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feae878a430a1b23774127547d842cb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd7db82a3e9a06d55b5e90d0aade9c64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99196cb0380dcd242b7a7a44bd1262ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7884388645e5c4fe3484756349487e76.png)
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10 . 若
,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94efb7d9be654dfefc24ceb960e91930.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
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