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先找规律,再填数:+-1=,+-=,+-=,+-=,则+- =.
先找规律,再填数:
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190026911955213/SYS201311011900269119552017_ST/0.png)
+
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190026911955213/SYS201311011900269119552017_ST/1.png)
-1=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190026911955213/SYS201311011900269119552017_ST/2.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190026911955213/SYS201311011900269119552017_ST/3.png)
+
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190026911955213/SYS201311011900269119552017_ST/4.png)
-
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190026911955213/SYS201311011900269119552017_ST/5.png)
=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190026911955213/SYS201311011900269119552017_ST/6.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190026911955213/SYS201311011900269119552017_ST/7.png)
+
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190026911955213/SYS201311011900269119552017_ST/8.png)
-
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190026911955213/SYS201311011900269119552017_ST/9.png)
=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190026911955213/SYS201311011900269119552017_ST/10.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190026911955213/SYS201311011900269119552017_ST/11.png)
+
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190026911955213/SYS201311011900269119552017_ST/12.png)
-
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190026911955213/SYS201311011900269119552017_ST/13.png)
=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190026911955213/SYS201311011900269119552017_ST/14.png)
,则
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190026911955213/SYS201311011900269119552017_ST/15.png)
+
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190026911955213/SYS201311011900269119552017_ST/16.png)
-
=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190026911955213/SYS201311011900269119552017_ST/17.png)
.
考点分析:
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