1 . 判断对错,不对的改过来。
(1)
+
=
=
。( )
(2)1-
-![](https://staticzujuan.xkw.com/quesimg/Upload/formula/341a199e06c3ebf256807b86a7c5e72b.png)
=1-(
-
)
=1-![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4296860f8b869e5175b8b1a9d2857e97.png)
=
。( )
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dbaa5ba63ddf4fd7e827c0c2c66c3a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828a078c01d407204a310a4491f59a9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4db9119aa54ec9ca0d4da9f92da68a1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eff998d034284391ca064755fa6bf1b.png)
(2)1-
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d98211b96f7b32680aaba7ae109fa3f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/341a199e06c3ebf256807b86a7c5e72b.png)
=1-(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d98211b96f7b32680aaba7ae109fa3f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/341a199e06c3ebf256807b86a7c5e72b.png)
=1-
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4296860f8b869e5175b8b1a9d2857e97.png)
=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eff998d034284391ca064755fa6bf1b.png)
您最近一年使用:0次
2 . 森林医生。(判断对错,并将错的改正过来)
( )改正:
( )改正:
( )改正:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b083ca4ab4a70ebcd880c9cd5c9b2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0573cacce1d6616cdce7ff4f1967be30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f009d5d522c724903a7f8dd42d1d0017.png)
您最近一年使用:0次
3 . 下面的计算对吗?把不对的改正过来.
(1)![](https://img.xkw.com/dksih/QBM/2019/10/11/2309641559121920/2348605173276673/STEM/6eed1d9675c4416d85ee44a0ff8990b5.png?resizew=185)
(2)![](https://img.xkw.com/dksih/QBM/2019/10/11/2309641559121920/2348605173276673/STEM/f8d9bbe50358438187b83688a9a78b5a.png?resizew=81)
(3)![](https://img.xkw.com/dksih/QBM/2019/10/11/2309641559121920/2348605173276673/STEM/64bf0899066f4473affb6acc05d008ca.png?resizew=179)
(4)
(1)
![](https://img.xkw.com/dksih/QBM/2019/10/11/2309641559121920/2348605173276673/STEM/6eed1d9675c4416d85ee44a0ff8990b5.png?resizew=185)
(2)
![](https://img.xkw.com/dksih/QBM/2019/10/11/2309641559121920/2348605173276673/STEM/f8d9bbe50358438187b83688a9a78b5a.png?resizew=81)
(3)
![](https://img.xkw.com/dksih/QBM/2019/10/11/2309641559121920/2348605173276673/STEM/64bf0899066f4473affb6acc05d008ca.png?resizew=179)
(4)
![](https://img.xkw.com/dksih/QBM/2019/10/11/2309641559121920/2348605173276673/STEM/9ccf4339eb5c410d8b522657601e7596.png?resizew=191)
您最近一年使用:0次
4 . 错案:
1-
= ![](https://img.xkw.com/dksih/QBM/2019/10/2/2303197570072576/2338574382743552/STEM/f3eb8280f5834738b7270494c36ce07b.png?resizew=16)
改正:
1-
![](https://img.xkw.com/dksih/QBM/2019/10/2/2303197570072576/2338574382743552/STEM/f274ec5eea4846aba611f17e8f3fdcf0.png?resizew=15)
![](https://img.xkw.com/dksih/QBM/2019/10/2/2303197570072576/2338574382743552/STEM/f3eb8280f5834738b7270494c36ce07b.png?resizew=16)
改正:
您最近一年使用:0次
5 . 错案:
+
= ![](https://img.xkw.com/dksih/QBM/2019/10/2/2303197570072576/2338574382759937/STEM/6549cb6aafb440d4aaf1be0436d835f7.png?resizew=16)
改正:
![](https://img.xkw.com/dksih/QBM/2019/10/2/2303197570072576/2338574382759937/STEM/f274ec5eea4846aba611f17e8f3fdcf0.png?resizew=15)
![](https://img.xkw.com/dksih/QBM/2019/10/2/2303197570072576/2338574382759937/STEM/f274ec5eea4846aba611f17e8f3fdcf0.png?resizew=15)
![](https://img.xkw.com/dksih/QBM/2019/10/2/2303197570072576/2338574382759937/STEM/6549cb6aafb440d4aaf1be0436d835f7.png?resizew=16)
改正:
您最近一年使用:0次
6 . 错案:
-
=1
改正:
![](https://img.xkw.com/dksih/QBM/2019/10/2/2303197570072576/2338574382759936/STEM/147ae16196ad49c59af833927b1e8e4d.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2019/10/2/2303197570072576/2338574382759936/STEM/2b5d66de37f64922b7bfc20e9f3fd18c.png?resizew=16)
改正:
您最近一年使用:0次
7 . 下面的计算对吗?对的画“√”,错的画“×”,并把不对的改正过来.
(1)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85f9a3290451164ef5a3d09d01768747.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da24a1746cd3072672dd7fc932c9b834.png)
您最近一年使用:0次
8 . 下面的计算对吗?若不对,请改正.
÷5=
×
=
( )
改正:
![](https://img.xkw.com/dksih/QBM/2019/9/23/2296709738348544/2297027769131008/STEM/8766252bd77c423dbcd1571e76e48e5c.png?resizew=14)
![](https://img.xkw.com/dksih/QBM/2019/9/23/2296709738348544/2297027769131008/STEM/24f397ca3a3f4901bae7cbdf436d1bd1.png?resizew=14)
![](https://img.xkw.com/dksih/QBM/2019/9/23/2296709738348544/2297027769131008/STEM/fa7a3e24c3064819ac101ea9d0f14aa0.png?resizew=7)
![](https://img.xkw.com/dksih/QBM/2019/9/23/2296709738348544/2297027769131008/STEM/c317723d99654f76adcc6a1a5f963788.png?resizew=14)
改正:
您最近一年使用:0次
9 . 面各题的计算是否有错误,应该怎样改正?
+
=
8-4
=4
2
-1
=1
+
=
![](https://img.xkw.com/dksih/QBM/2019/4/3/2174468480630784/2240950257057792/STEM/0d2ba69195164a77bb82812e4de0b59e.png?resizew=7)
![](https://img.xkw.com/dksih/QBM/2019/4/3/2174468480630784/2240950257057792/STEM/56a2bc0e8d824883b5376dd2a6535ceb.png?resizew=7)
![](https://img.xkw.com/dksih/QBM/2019/4/3/2174468480630784/2240950257057792/STEM/b7b43069b9ec42488cfa17fd8aebed2c.png?resizew=7)
![](https://img.xkw.com/dksih/QBM/2019/4/3/2174468480630784/2240950257057792/STEM/068d27391c824eb0baf9e9f1a92d949e.png?resizew=7)
![](https://img.xkw.com/dksih/QBM/2019/4/3/2174468480630784/2240950257057792/STEM/068d27391c824eb0baf9e9f1a92d949e.png?resizew=7)
![](https://img.xkw.com/dksih/QBM/2019/4/3/2174468480630784/2240950257057792/STEM/15703dbeb45c410b9b3b51b107817300.png?resizew=7)
![](https://img.xkw.com/dksih/QBM/2019/4/3/2174468480630784/2240950257057792/STEM/56a2bc0e8d824883b5376dd2a6535ceb.png?resizew=7)
![](https://img.xkw.com/dksih/QBM/2019/4/3/2174468480630784/2240950257057792/STEM/9ca9955972774b86a79cfd92157da996.png?resizew=7)
![](https://img.xkw.com/dksih/QBM/2019/4/3/2174468480630784/2240950257057792/STEM/dc5f8bc797ed498eb695be22976b9961.png?resizew=7)
![](https://img.xkw.com/dksih/QBM/2019/4/3/2174468480630784/2240950257057792/STEM/9ca9955972774b86a79cfd92157da996.png?resizew=7)
![](https://img.xkw.com/dksih/QBM/2019/4/3/2174468480630784/2240950257057792/STEM/80ea89eed7b34bbba818311b95dbbae7.png?resizew=14)
您最近一年使用:0次
10 . 下面的计算对吗?如果不对,请说明理由并算出正确结果.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bb8f959b42064c2c01a8fb5e470096e.png)
您最近一年使用:0次