1、20以内退位减法13-9= 15-8= 14-7= 14-8= 11-3= 11-6= 13-7= 13-4= 16-9= 18-9= 13-9= 12-3= 12-4= 12-8= 15-6= 14-8= 11-8= 14-5= 11-9= 11-4= 13-6= 11-7= 11-8= 15-7= 12-5= 16-8= 12-8= 12-5= 11-6= 11-5= 11-3= 12-3= 11-8= 17-8= 12-4= 12-9= 15-8= 14-9= 16-7= 12-8= 16-7= 15-7= 14-5= 14-7= 14-7= 、12-8= 14-7= 14-8= 12-
2、8= 17-8= 15-8= 11-4= 17-8= 11-3= 17-9= 13-7= 12-5= 15-8= 12-8= 18-9= 11-6= 12-5= 11-9= 16-8= 13-6= 16-9= 12-6= 13-9= 14-5= 14-6= 13-4= 16-7= 16-7= 13-4= 12-6= 11-7= 13-6= 16-8= 12-6= 11-9= 14-7= 12-6= 16-9= 14-9= 14-6= 11-9= 15-9= 11-8= 16-9= 13-6= 13-8= 18-9= 11-5= 12-9= 14-7= 15-6= 16-9= 17-9= 11-
3、9= 12-9= 改错： 20以内退位减法12-3= 17-8= 14-6= 13-7= 14-9= 11-7= 18-9= 16-9= 11-5= 12-8= 13-8= 13-8= 12-8= 11-3= 11-6= 11-9= 14-9= 11-7= 11-5= 12-3= 11-8= 14-9= 18-9= 12-6= 16-7= 17-8= 13-4= 11-5= 13-7= 12-6= 12-8= 12-8= 14-5= 11-7= 13-5= 15-7= 18-9= 13-9= 14-8= 13-9= 11-5= 17-9= 11-5= 15-8= 15-9= 18-9= 13-
4、8= 11-6= 11-3= 16-7= 16-8= 11-4= 13-6= 13-4= 13-6= 12-5= 14-8= 13-9= 12-5= 11-9= 11-2= 11-3= 14-9= 13-6= 16-7= 15-7= 15-8= 15-6= 17-8= 15-9= 11-2= 15-7= 12-3= 11-4= 14-6= 12-9= 12-6= 15-6= 12-9= 15-8= 11-9= 11-7= 15-6= 11-7= 14-9= 13-5= 14-6= 12-4= 13-5= 16-7= 15-9= 13-5= 16-7= 14-7= 11-5= 12-9= 13-
5、5= 12-5= 11-7= 15-9= 改错： 20以内退位减法14-5= 12-5= 13-9= 11-6= 15-8= 15-9= 16-8= 13-9= 13-8= 15-8= 14-8= 12-8= 15-8= 16-7= 12-9= 15-8= 14-9= 16-9= 11-9= 17-9= 14-9= 16-8= 11-9= 11-9= 13-4= 12-3= 12-6= 17-9= 11-7= 12-5= 12-6= 11-5= 12-3= 11-5= 12-4= 15-9= 14-6= 14-9= 11-2= 16-8= 16-8= 14-9= 13-9= 13-9= 13-
6、4= 12-4= 15-9= 13-4= 15-6= 13-8= 14-9= 11-3= 13-7= 12-3= 12-5= 13-4= 15-8= 13-5= 12-9= 11-7= &11-7= 14-5= 12-8= 16-8= 11-4= 13-7= 15-6= 11-8= 11-3= 12-5= 14-9= 14-6= 11-7= 12-8= 12-6= 13-7= 15-9= 11-8= 11-2= 16-8= 14-8= 15-9= 12-6= 13-8= 14-7= 14-6= 13-7= 16-7= 13-7= 16-8= 15-8= 14-9= 15-8= 13-8= 14
7、-6= 12-5= 14-9= 11-7= 17-9= 16-7= 改错： 20以内退位减法14-6= 13-6= 15-7= 11-6= 13-7= 11-5= 12-7= 15-9= 14-9= 14-7= 17-9= 11-9= 15-7= 14-8= 13-5= 13-5= 11-7= 12-7= 13-9= 11-8= 16-7= 17-9= 11-8= 13-8= 11-3= 16-7= 14-9= 12-5= 16-7= 13-5= 11-6= 15-9= 11-5= 12-6= 16-7= 11-3= 17-8= 11-8= 14-6= 18-9= 12-8= 12-5= 14
8、-6= 13-4= 16-7= 11-5= 13-9= 11-9= 13-5= 15-8= 16-9= 15-8= 17-8= 11-8= 11-8= 11-7= 14-7= 13-4= 11-3= 15-9= 12-3= 12-8= 11-3= 14-5= 13-9= 16-7= 11-5= 14-9= 15-9= 12-9= 15-7= 11-7= 11-8= 15-8= 14-8= 17-9= 11-6= 16-9= 11-3= 15-7= 16-9= 15-8= 12-7= 16-7= 13-7= 12-3= 12-4= 12-3= 11-2= 15-8= 12-5= 11-6= 14
9、-7= 16-9= 17-8= )15-8= 12-6= 18-9= 12-7= 11-4= 改错： 20以内退位减法11-6= 12-6= 13-9= 14-5= 14-6= 15-8= 14-6= 16-8= 14-9= 11-3= 13-5= 12-3= 12-4= 11-9= 14-9= 13-6= 13-5= 14-9= 12-5= 12-8= 13-5= 14-7= 14-6= 11-5= 11-8= 13-8= 11-9= 16-7= 15-7= 13-9= 16-9= 14-9= 11-7= 12-8= 16-8= 14-7= 11-7= 11-4= 12-6= 15-7= 1
10、2-9= 14-8= 15-9= 13-6= 17-9= 11-7= 11-3= 12-9= 11-5= 14-8= 11-4= 13-6= 11-9= 12-6= 12-8= 16-7= 12-9= 11-8= 14-7= 14-6= 12-4= 12-4= 11-7= 12-5= 13-6= 13-7= 12-3= 14-6= 15-9= 11-6= 16-7= 13-6= 12-6= 11-7= 12-5= 14-7= 15-8= 12-7= 16-7= 12-3= 13-8= 12-9= 16-7= 14-5= 13-6= ）13-5= 12-4= 17-9= 15-6= 11-6=
11、16-8= 12-5= 11-9= 17-9= 11-5= 14-9= 13-9= 11-7= 14-5= 12-5= 改错： 20以内退位减法11-9= 17-8= 11-4= 14-7= 13-8= 13-8= 12-8= 14-9= 16-9= 12-3= 14-5= 13-7= 16-8= 16-9= 14-9= 12-4= 14-8= 15-9= 13-6= 14-8= |15-8= 18-9= 12-8= 13-8= 14-7= 16-8= 14-5= 12-9= 13-6= 13-8= 13-8= 16-9= 14-5= 15-8= 13-5= 14-8= 13-4= 13-4=
12、 14-5= 12-3= 13-9= 12-3= 13-9= 11-8= 13-7= 17-8= 11-6= 12-9= 11-6= 12-6= 12-7= 13-6= 16-7= 11-6= 14-5= 12-8= 13-9= 15-8= 14-9= 13-9= 12-5= 14-9= 14-8= 17-9= 12-8= 12-9= 13-5= 16-9= 12-9= 12-3= 13-7= 11-7= 13-7= 12-5= 11-7= 14-6= 17-8= 13-6= 17-9= 15-8= 13-6= 14-7= 15-7= 13-7= 13-8= 11-2= 15-9= 16-7=
13、 17-9= 15-9= 16-8= 11-9= 11-5= 13-8= 17-9= 11-8= 12-9= 14-8= 11-6= 16-8= 改错： 20以内退位减法13-4= 12-9= 12-4= 15-8= 11-2= ！13-8= 15-6= 12-7= 12-8= 14-8= 12-4= 13-8= 13-5= 14-8= 14-5= 12-6= 15-9= 12-6= 11-8= 12-4= 15-8= 11-3= 12-5= 12-7= 14-9= 11-5= 16-7= 12-9= 12-8= 17-8= 11-4= 12-3= 11-3= 15-9= 15-7= 17-8
14、= 12-7= 11-9= 12-4= 17-8= 14-5= 12-3= 11-4= 12-5= 12-9= 11-8= 12-9= 12-7= 12-6= 13-4= 16-9= 13-5= 11-7= 12-7= 14-6= ￥13-4= 11-9= 15-6= 16-7= 17-8= 13-7= 12-3= 12-4= 13-4= 12-5= 13-8= 12-4= 14-6= 16-8= 11-9= 13-4= 11-3= 11-4= 11-4= 12-7= 11-9= 17-9= 12-3= 13-7= 17-8= 11-2= 12-6= 17-8= 15-7= 14-5= 15-
15、9= 12-6= 12-9= 11-7= 11-7= 13-5= 12-9= 16-7= 13-5= 11-9= 14-8= 13-8= 12-6= 13-7= 14-6= 改错： |20以内退位减法13-8= 14-7= 13-4= 15-8= 13-5= 15-6= 15-8= 11-6= 12-3= 13-5= 15-6= 13-8= 13-8= 11-4= 12-8= 11-3= 12-8= 11-4= 16-7= 11-3= 12-3= 11-4= 15-8= 13-8= 16-7= 14-7= 13-9= 12-8= 16-9= 11-9= 16-7= 16-9= 12-7= 12
16、-6= 11-8= 11-7= 12-3= 13-7= 16-7= 16-9= 16-8= 12-4= 13-9= 15-9= 15-9= 12-7= 13-7= 11-6= 15-7= 15-9= 12-9= 11-4= 12-4= 14-6= 11-6= 12-8= 14-9= 17-8= 16-9= 11-7= 16-7= 13-4= 15-7= 11-9= 15-8= 13-7= 13-5= 15-6= 17-8= 11-5= 12-5= 11-5= 11-2= 12-5= 12-7= 11-3= 17-9= 13-8= 16-8= 11-3= 15-7= 11-2= 14-5= 15
17、-6= 12-5= 15-8= 11-9= 13-7= 14-8= 14-5= 12-7= 18-9= 16-8= 11-4= 11-8= 11-9= 13-6= 16-7= 14-5= 12-9= 改错： 20以内退位减法12-8= 15-7= 11-7= 14-8= 12-4= 15-9= 15-7= 15-6= 13-7= 14-6= 12-4= 12-9= 13-7= 17-9= 12-4= 12-8= 14-8= 11-5= 14-5= 18-9= 12-9= 11-4= 11-7= 13-9= 14-8= 15-8= 12-8= 13-8= 13-8= 16-8= 13-6= 15
18、-8= 17-9= 12-7= 11-8= 11-5= 14-7= 12-7= 11-8= 11-4= 14-5= 15-6= 11-7= 11-5= 11-9= 15-6= 12-4= 15-9= 13-9= 14-8= 15-9= 12-7= 11-2= 16-9= 12-8= 11-8= 12-6= 14-7= 12-9= 15-8= 16-8= 11-7= 15-7= 15-6= 12-9= 12-5= 11-8= 11-6= 11-9= 13-6= 13-5= 11-4= 11-7= 12-9= 18-9= 11-3= 14-9= 17-8= 16-7= 16-7= 12-3= 13
19、-6= 12-4= 12-8= 12-9= 15-8= 12-7= 12-4= 12-5= 16-8= 13-9= 11-9= 12-3= 11-8= 13-5= 14-7= 12-9= 13-6= 16-7= 12-8= 改错： 20以内退位减法17-8= 12-5= 16-8= 13-9= 12-6= 11-6= 15-6= 11-9= 14-9= 11-4= !16-9= 12-5= 14-7= 13-5= 11-3= 12-3= 14-8= 12-4= 12-9= 11-5= 13-6= 14-8= 11-5= 14-7= 12-3= 13-8= 13-5= 13-9= 11-8= 12-4= 11-5= 11-9= 11-6= 14-6= 13-6= 12-3= 13-8= 16-7= 11-6= 16-9= 11-9= 11-4= 11-4= 11-2= 12-6= 14-5= 12-8= 16-8= 11-4= 12-6= 11-7= 11-3= 12-9= 18-9= 14-6= 12-5=
