20以内不退位减法

19-15= 18-16= 19-1= 17-11= 18-5=

11-1= 18-15= 19-14= 16-12= 17-13=

19-18= 14-12= 16-11= 16-5= 17-4=

15-14= 12-12= 15-1= 16-15= 11-0= 16-0= 11-1= 18-4= 17-17= 13-1= 16-10= 13-11= 16-2= 17-15= 16-13= 17-1= 11-10= 15-5= 18-14= 12-1= 15-10= 18-3= 19-4= 18-13= 15-4= 19-7= 19-5= 18-17= 19-6= 12-2=

17-12=

17-2=

19-8=

14-4=

18-8=

19-9=

16-6=

17-7=

16-3= 18-12= 16-14= 14-13= 17-6= 18-8= 17-16= 16-16= 14-2= 15-3= 16-4= 18-18=

17-5= 18-6= 19-19= 17-14= 13-12=

14-14= 15-2= 15-13= 19-17= 15-15=

15-11= 17-6= 13-13= 18-10= 19-13=

19-12= 18-1= 19-11= 17-10= 13-3= 19-12= 18-1= 19-11= 17-10= 13-3= 14-1= 11-11= 14-3= 14-1= 11-11= 14-3= 13- 2= 15-12= 18-7= 18-2= 13-10= 13- 2= 15-12= 18-7= 18-2= 13-10= 19-16= 14-11= 17-3= 14-10= 18-0= 19-16= 14-11= 17-3= 14-10= 18-0= 19-2=

18-11=

16-1=

12-10=

19-3=

19-2=

18-11=

16-1=

12-10=

19-3=

12-11= 19-10= 12-11= 19-10=

19-15= 18-16= 19-1= 17-11= 18-5=

11-1= 18-15= 19-14= 16-12= 17-13=

19-18= 14-12= 16-11= 16-5= 17-4=

15-14= 12-12= 15-1= 16-15= 11-0= 16-0= 11-1= 18-4= 17-17= 13-1= 16-10= 13-11= 16-2= 17-15= 16-13= 17-1= 11-10= 15-5= 18-14= 12-1= 15-10= 18-3= 19-4= 18-13= 15-4= 19-7= 19-5= 18-17= 19-6= 12-2=

17-12=

17-2=

19-8=

14-4=

18-8=

19-9=

16-6=

17-7=

16-3= 18-12= 16-14= 14-13= 17-6= 18-8= 17-16= 16-16= 14-2= 15-3= 16-4= 18-18=

17-5= 18-6= 19-19= 17-14= 13-12=

14-14= 15-2= 15-13= 19-17= 15-15=

15-11= 17-6= 13-13= 18-10= 19-13=

17-17= 13-1= 17-5= 14-14= 15-11= 19-12= 18-1= 19-11= 17-10= 13-3= 17-15= 15-2= 17-6= 14-1= 11-11= 14-3= 15-10= 15-13= 13-13= 13- 2= 15-12= 18-7= 18-2= 13-10= 19-6= 16-4= 17-14= 19-17= 18-10= 14-11= 17-3= 14-10= 18-0= 17-7=

18-18=

13-12=

15-15=

19-13=

19-2=

18-11=

16-1=

12-10=

14-2= 15-3= 18-6= 19-19= 19-16= 19-3=

12-11= 19-10=

19-15= 18-16= 19-1= 17-11= 18-5=

11-1= 18-15= 19-14= 16-12= 17-13=

19-18= 14-12= 16-11= 16-5= 17-4=

15-14= 12-12= 15-1= 16-15= 11-0= 16-0= 11-1= 18-4= 15-1= 16-15= 16-10= 13-11= 16-2= 16-2= 16-13= 17-1= 11-10= 15-5= 18-14= 12-1= 11-10= 18-3= 19-4= 18-13= 15-4= 19-7= 19-5= 18-17= 18-13= 15-4= 12-2=

17-12=

17-2=

19-8=

14-4=

18-8=

19-9=

16-6=

17-2=

19-8=

16-3= 18-12= 16-14= 14-13= 17-6= 18-8= 17-16= 16-16= 16-3= 18-12=

11-0= 16-14= 15-5= 19-7= 14-4=

16-0= 14-13= 18-14= 19-5= 18-8=

11-1= 17-6= 18-8= 17-16= 19-9=

18-4= 17-17= 13-1= 17-5= 14-14= 15-11= 19-12= 18-1= 19-11= 17-10= 17-15= 15-2= 17-6= 14-1= 11-11= 14-3= 12-1= 15-10= 15-13= 13-13= 13- 2= 15-12= 18-7= 18-2= 18-17= 19-6= 16-4= 17-14= 19-17= 18-10= 19-16= 14-11= 17-3= 14-10= 16-6=

17-7=

13-12=

15-15=19-13=19-3=

19-2=

18-11=

16-1=

16-16= 14-2= 15-3= 18-18= 18-6= 19-19=

12-11=

13-3= 19-10= 13-10= 18-0= 12-10=

19-15= 18-16= 19-1= 17-11= 18-5=

11-1= 18-15= 19-14= 16-12= 17-13=

19-18= 15-14= 12-12= 19-15= 11-1= 19-18= 15-14= 12-12= 15-1= 16-15= 14-12= 16-10= 13-11= 18-16= 14-12= 16-10= 13-11= 16-2= 16-11= 16-13= 17-1= 19-1= 19-14= 16-11= 16-13= 17-1= 11-10= 16-5= 18-3= 19-4= 17-11= 16-12= 16-5= 18-3= 19-4= 18-13= 15-4= 17-4=

12-2=

17-12=

18-5=

17-13=

17-4=

12-2=

17-12=

17-2=

18-15= 16-3= 18-12= 19-8=

11-0= 16-14= 15-5= 19-7= 14-4=

16-0= 14-13= 18-14= 19-5= 18-8=

11-1= 17-6= 18-8= 17-16= 19-9=

18-4= 17-17= 13-1= 17-5= 14-14= 15-11= 19-12= 18-1= 19-11= 17-10= 17-15= 15-2= 17-6= 14-1= 11-11= 14-3= 12-1= 15-10= 15-13= 13-13= 13- 2= 15-12= 18-7= 18-2= 18-17= 19-6= 16-4= 17-14= 19-17= 18-10= 19-16= 14-11= 17-3= 14-10= 16-6=

17-7=

13-12=

15-15=19-13=19-3=

19-2=

18-11=

16-1=

16-16= 14-2= 15-3= 18-18= 18-6= 19-19=

12-11=

13-3= 19-10= 13-10= 18-0= 12-10=

18-1= 12-11= 15-12= 14-11= 19-2=

19-11= 11-11= 18-7= 17-3= 18-11=

17-10= 13-3= 19-15= 11-1= 19-18= 15-14= 12-12= 15-1= 16-15= 11-0= 14-3= 18-16= 14-12= 16-10= 13-11= 16-2= 18-2= 13-10= 19-1= 19-14= 16-11= 16-13= 17-1= 11-10= 15-5= 14-10= 18-0= 17-11= 16-12= 16-5= 18-3= 19-4= 18-13= 15-4= 16-1=

12-10=

18-5= 17-13=

17-4= 12-2=

17-12=

17-2=

19-8=

14-4=

19-10=

18-15=

16-3= 18-12= 16-14= 19-7=

16-0= 14-13= 18-14= 19-5= 18-8=

11-1= 17-6= 18-8= 17-16= 19-9=

18-4= 16-16= 12-1= 18-17= 16-6=

17-17= 13-1= 17-5= 14-14= 15-11= 19-12= 17-5= 14-14= 15-11= 19-12= 17-15= 15-2= 17-6= 14-1= 15-2= 17-6= 14-1= 15-10= 15-3= 19-19= 15-13= 13-13= 13- 2= 19-19= 15-13= 13-13= 13- 2= 19-6= 17-14= 19-17= 18-10= 19-16= 17-14= 19-17= 18-10= 19-16= 17-7=

13-12=

15-15=19-13=19-3=

13-12=

15-15=19-13=19-3=

14-2= 16-4= 18-18= 18-6=

18-6=

18-1= 12-11= 15-12= 14-11= 19-2=

19-11= 11-11= 18-7= 17-3= 18-11=

17-10= 14-3= 18-2= 14-10= 16-1=

13-3= 19-15= 11-1= 19-18= 15-14= 12-12= 15-1= 16-15= 11-0= 16-0= 18-16= 14-12= 16-10= 13-11= 16-2= 13-10= 19-1= 19-14= 16-11= 16-13= 17-1= 11-10= 15-5= 18-14= 18-0= 17-11= 16-12= 16-5= 18-3= 19-4= 18-13= 15-4= 19-5= 12-10=

18-5= 17-13=

17-4= 12-2=

17-12=

17-2=

19-8=

14-4=

18-8=

19-10=

18-15=

16-3= 18-12= 16-14= 19-7= 14-13=

11-1= 17-6= 18-8= 17-16= 19-9=

18-4= 16-16= 12-1= 18-17= 16-6=

17-17= 17-15= 15-10= 19-6= 17-7=

13-1= 11-1= 18-4= 17-17= 13-1= 17-5= 14-14= 15-11= 19-12= 18-1= 17-15= 15-2= 17-6= 14-1= 12-1= 15-10= 15-13= 13-13= 13- 2= 15-12= 18-17= 19-6= 17-14= 19-17= 18-10= 19-16= 14-11=

19-9=

16-6=

17-7=

13-12=

15-15=19-13=19-3=

19-2=

14-2= 15-3= 16-4= 18-18= 17-6= 18-8= 17-16= 16-16= 14-2= 15-3= 16-4= 18-18= 18-6= 19-19=

12-11=

19-11= 11-11= 18-7= 17-3= 18-11=

17-10= 14-3= 18-2= 14-10= 16-1=

13-3= 19-10= 13-10= 18-0= 12-10=

19-15= 11-1= 19-18= 15-14= 12-12= 15-1= 16-15= 11-0= 16-0= 15-1= 18-16= 14-12= 16-10= 13-11= 16-2= 19-1= 19-14= 16-11= 16-13= 17-1= 11-10= 15-5= 18-14= 17-11= 16-12= 16-5= 18-3= 19-4= 18-13= 15-4= 19-5= 18-13= 18-5= 17-13=

17-4= 12-2=

17-12=

17-2=

19-8=

14-4=

18-8=

17-2=

18-15=

16-3= 18-12= 16-14= 19-7= 14-13= 16-3= 18-12=

16-15= 16-2= 11-10= 15-4= 19-8=

11-0= 16-14= 15-5= 19-7= 14-4=

16-0= 14-13= 18-14= 19-5= 18-8=

11-1= 18-4= 17-17= 13-1= 17-5= 14-14= 15-11= 19-12= 18-1= 19-11= 17-15= 15-2= 17-6= 14-1= 11-11= 12-1= 15-10= 15-13= 13-13= 13- 2= 15-12= 18-7= 17-16= 18-17= 19-6= 16-4= 17-14= 19-17= 18-10= 19-16= 14-11= 17-3= 19-9=

16-6=

17-7=

18-18=

13-12=

15-15=19-13=19-2=

18-11=

17-6= 18-8= 16-16= 14-2= 15-3= 18-6= 19-19=

19-3=

12-11=

17-10= 14-3= 18-2= 14-10= 16-1=

13-3= 19-10= 13-10= 18-0= 12-10=

19-15= 18-16= 19-1= 17-11= 18-5=

11-1= 19-18= 15-14= 12-12= 11-1= 19-18= 15-14= 12-12= 15-1= 16-15= 14-12= 16-10= 13-11= 14-12= 16-10= 13-11= 16-2= 19-14= 16-11= 16-13= 17-1= 19-14= 16-11= 16-13= 17-1= 11-10= 16-12= 16-5= 18-3= 19-4= 16-12= 16-5= 18-3= 19-4= 18-13= 15-4= 17-13=

17-4=

12-2=

17-12=

17-13=

17-4=

12-2=

17-12=

17-2=

18-15= 18-15= 16-3= 18-12= 19-8=

11-0= 16-14= 15-5= 19-7= 14-4=

16-0= 14-13= 18-14= 19-5= 18-8=

11-1= 17-6= 18-8= 17-16= 19-9=

18-4= 17-17= 13-1= 17-5= 14-14= 15-11= 19-12= 18-1= 19-11= 17-10= 17-15= 15-2= 17-6= 14-1= 11-11= 14-3= 12-1= 15-10= 15-13= 13-13= 13- 2= 15-12= 18-7= 18-2= 18-17= 19-6= 16-4= 17-14= 19-17= 18-10= 19-16= 14-11= 17-3= 14-10= 16-6=

17-7=

18-18=

13-12=

15-15=19-13=19-2=

18-11=

16-1=

16-16= 14-2= 15-3= 18-6= 19-19=

19-3=

12-11=

13-3= 19-10= 13-10= 18-0= 12-10=

19-15= 18-16= 19-1= 17-11= 18-5=