1 . 脱式计算
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f93ca20bf68b9e680f340adea6dbb288.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9dc5b06fa69c8c18ef8df255b7f2a7f.png)
(3)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f93ca20bf68b9e680f340adea6dbb288.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9dc5b06fa69c8c18ef8df255b7f2a7f.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7936c216359e699c076a5ffd47f0bb43.png)
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2 . 淘气和笑笑一共有357.5元,如果把淘气的钱数的小数点向右移动一位就和笑笑一样多,笑笑有 ________ 元.
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3 . 我国大约有
亿人,每人节约一分钱,一共可以节约______ 万元.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a76ae35768783c2ee760259cefd4318.png)
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4 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d85e3aa5cca4c16016a24d8b5ee43282.png)
______ ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d138958f57cfb5c4aca5406576e9ad53.png)
______ ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b305466c6911584bf9d962226cf8a55d.png)
______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d85e3aa5cca4c16016a24d8b5ee43282.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d138958f57cfb5c4aca5406576e9ad53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b305466c6911584bf9d962226cf8a55d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f90bae886c8ab958aa4c693bf8e0627d.png)
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5 . 计算下列各题.
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a90f85d3a0e2dc41e5a5ae337731ac6.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/122ce682c4755932b0c720b061dd1143.png)
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdce398b391f54fcfcc855bf2763dcb2.png)
(4)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a90f85d3a0e2dc41e5a5ae337731ac6.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/122ce682c4755932b0c720b061dd1143.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdce398b391f54fcfcc855bf2763dcb2.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f18535fe3f22db7a75347d436bb3d941.png)
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6 . 计算:
(1)
;
(2)
;
(3)
;
(4)
;
(5)
;
(6)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d4d652856dafadf1aa91264ba53b16.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7830b300be32ec51f36f4f0ef0fd149d.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33acc056eeda163d68dea77f5b560e.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a1d1a0bdb7ba409376a743e4745d0a8.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f55b92ce109054aae0efc8c0f5ad0ce.png)
(6)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64b9ee40882428968a80dd0da0240d5a.png)
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7 . 下面说法正确的有( )个.
①
,x和y成反比例
②正方形的边长和周长成正比例
③甲数的
等于乙数的
(甲乙均大于0),则甲<乙
④经过两点可以画无数条直线
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a49d2a3b5304e828d3cc595b56e6cd73.png)
②正方形的边长和周长成正比例
③甲数的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/158b045c6172c4178d7aa52083e1489f.png)
④经过两点可以画无数条直线
A.4 | B.3 | C.2 | D.1 |
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8 . (1)
,
(2)
,
(3)
,
(4)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4925cbdbf1cf1b3a43a2ee5b09f6891.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f98420fd8985b6a530498fd193da0d94.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19366aed431bb8fab1eca19d2f5c32e4.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae31ad4d233bb35119555233cba6f241.png)
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9 . 下面物体中,( )大约重1吨.
A.100瓶5升袋的色拉油 | B.10000枚1元的硬币 |
C.500个苹果 | D.25名六年级学生 |
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