1 . 下面的计算对吗?把不对的改正。
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee364576b52b031611287ae5d739ebc7.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee364576b52b031611287ae5d739ebc7.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e51d1a32042891b7468f35f8cede4fd5.png)
您最近一年使用:0次
2 .
。( )
改正:______________________________ 。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84eeda55754f956539f451fe34e3a07c.png)
改正:
您最近一年使用:0次
3 .
。( )
改正:______________________________ 。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7e04051aa17ec704258a9d93d9934d.png)
改正:
您最近一年使用:0次
23-24五年级下·全国·假期作业
4 .
。( )
改正:____________________ 。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b5319eb3a3dcd0ab4db3deacdc384d6.png)
改正:
您最近一年使用:0次
23-24五年级下·全国·假期作业
5 .
。( )
改正:____________________ 。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8008b9bd9202efba41056cba8b53733.png)
改正:
您最近一年使用:0次
6 . 改错。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f057162a712773f8cf512c162bec3e2.png)
改正:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0eb6e2a680219588123588232b01ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/876030e9af9eee88b867b53975d4ebf7.png)
改正:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c62c2519b95ec61593ba67265e400aa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f057162a712773f8cf512c162bec3e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5ed60f73c6eff0266f61ab872a8a157.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0eb6e2a680219588123588232b01ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/876030e9af9eee88b867b53975d4ebf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827a65e46ce216423a5901facb24200e.png)
您最近一年使用:0次
7 . 下图是淘气解方程的过程,从第( )步开始出错,错误原因是什么?正确的x的值是多少?
解:
|
您最近一年使用:0次
8 . 玲玲用加法交换律和结合律对下面的算式进行了简便运算,但老师却给她打了错号。你知道她错哪儿了吗?帮她计算一下。
您最近一年使用:0次
9 . 下面的计算对吗?不对的在后面的横线上改正过来。
( )__________
( )__________
( )__________
( )__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27c645df87555872ef77b48ef76570d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4958d574924be3cb62462c4bba465ce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7963f14f7f84146c763fc9b3df15739.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/355cf9de7d618b9c7dadc7962285da75.png)
您最近一年使用:0次
10 . 先判正误,再改正。
改正:
改正:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45faec9cd20fc67808d40843d9539e9b.png)
( )
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d271b830aace6eab2742ae38ae9708a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/530c62124d73571fad2f995b915daa85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c110f0b351ea7274cb59e1fb22a5deb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45faec9cd20fc67808d40843d9539e9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37eb412894b2c7ead4bc7b168f6f6d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e8436f83ad5844d5ba784cfcde5ab5b.png)
您最近一年使用:0次