1 . 下面是聪聪计算分数乘法的做法.
![](https://img.xkw.com/dksih/QBM/2023/9/16/3326271817842688/3451376083116032/STEM/4f8e7331ec774a45835e36ffc4183fea.png?resizew=406)
认真观察并理解,请你也用聪聪的这种方法计算下面的小数乘法和整数乘法.
![](https://img.xkw.com/dksih/QBM/2023/9/16/3326271817842688/3451376083116032/STEM/4f8e7331ec774a45835e36ffc4183fea.png?resizew=406)
认真观察并理解,请你也用聪聪的这种方法计算下面的小数乘法和整数乘法.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21973227b160a3747308d71204fa0d1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da507782c8f3f2cc1ffc179483da7f6d.png)
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2 . 直接写出得数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b718b2a0ded2bd6e53df09e3a9ae260.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87d739452ce934fec3f42b8b2255ee1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e80e94d6578199c6f26607c94d5fba7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c11d1e14397443efdfc0e149f44020f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b718b2a0ded2bd6e53df09e3a9ae260.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2a87ccbdefc707825070065808d154.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c275e757a790c170f2e1583bbe5dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6d3559c77d85e4aedd79bdcb714d9a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e07a1f2c9fa833ee8a88455bf13afb.png)
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3 . 根据统计,每1000辆机动车每天会产生3500千克的废气.A市现有21万辆机动车,城市环境质量形势比较严峻,“低碳生活,绿色出行”已成为广大市民的共识.从去年开始,A市在市区40街区增设公共自行车站点方便市民出行.每个街区站点投放30辆自行车,每辆自行车每天可以满足12个人的出行需求.
(1)A市的机动车每天要排放多少千克废气?
(2)A市市区公共自行车站点配置后,每天可以满足多少万人出行?
(3)“低碳生活,绿色出行”,你还有什么好的建议?
(1)A市的机动车每天要排放多少千克废气?
(2)A市市区公共自行车站点配置后,每天可以满足多少万人出行?
(3)“低碳生活,绿色出行”,你还有什么好的建议?
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4 . 直接写出得数或比值
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d3e31336fddb974ff324bf809da24.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e92f1872e066fa0c30b803b4641f296.png)
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88386c48f50907a71a8a9e6d88668865.png)
(4)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0aa82baca0b64709658588cc5ae617b.png)
(5)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/514a1506faaf715cdbf72d9a0aeb1641.png)
(6)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d3e31336fddb974ff324bf809da24.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e92f1872e066fa0c30b803b4641f296.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88386c48f50907a71a8a9e6d88668865.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0aa82baca0b64709658588cc5ae617b.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/514a1506faaf715cdbf72d9a0aeb1641.png)
(6)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afec8e80d41d936a8a34dddf649147a2.png)
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名校
5 . 一根电线长
米,截去
,还剩( ) 米,若截去
米,还剩( )
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6503ca085e3ca5f2ba723b0dd66e210b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f67a88085b1866f33f894293da618c8.png)
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名校
6 .
千克的
是______ 千克;______ 米的
是
米.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfd121f4aeca8a78a320fca1fd1c4d07.png)
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7 . 直接写出得数:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f0c3e148798e3b7fb7224e214db0648.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44c50746244ed9f6448909dec3de8da9.png)
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec70ba0cdf8fb8049375c8da00ccbc00.png)
(4)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f0c3e148798e3b7fb7224e214db0648.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44c50746244ed9f6448909dec3de8da9.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec70ba0cdf8fb8049375c8da00ccbc00.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44b20d65e836a78a7832d3f6ec9e977a.png)
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8 . 右图双阴影部分用分数的算式表示是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/10/4cbdc3a2-4e71-413b-b7e9-479d0b197a4e.png?resizew=133)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 看图列式.
______ .
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/25/289ad1d0-f696-44f9-9768-6f3e7474a906.png?resizew=292)
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10 .
吨是( ) 吨的
,( ) 平方米是36平方米的
,( ) 米减少
是40米.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51ed533272ac9d01f1ce3e741b034d4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33adb74906403b0b00fcbd9fa691d8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d86ab7c97cd8a0b15ba5efc1be94230.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
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