20以内加减法达标练习A4打印版20每140题

1、时间错误家长签字6+ 9 =7+ 9 =9+ 9 =5+ 7 =7+ 9=5+ 8 =15- 8=8+ 7 =6+ 8 =16- 7=7+ 3 =6+ 9 =4+ 7 =4+ 7 =2+ 17=6+ 6 =8+ 4 =6+ 3 =5+ 9 =12-8=9+ 5 =9+ 8 =12- 9=9+ 4 =17- 8=7+ 9 =8+ 5 =9-3 =7+ 8 =18- 1 =8+ 8 =9+ 11 =8+ 3 =6+ 5 =17- 8=5+ 8 =16- 7=5+ 7 =4+ 9 =15- 7=14-9=13- 7=5+ 6 =5+ 7 =10-4=17-6=7+ 4 =6+ 8 =7+ 7 =14

2、+ 6=4+ 7 =8+ 3 =9+ 2 =8+ 4 =16- 9=9+ 4 =17- 6=7+ 4 =5+ 3 =15+ 5=6+ 8 =19- 8=5+ 5 =2+ 7 =16- 8=9+ 7 =8+ 5 =4+ 9 =6+ 4 =14- 7=7+ 8 =9+ 5 =10+ 6=7+ 4 =12+ 8=9+ 8 =8+ 6 =9+ 5 =3+ 6 =8+ 6=4+ 6 =7+ 14=10+ 4=13-6=14- 10 =5+ 3 =8+ 2 =6+ 10=18-9=8+ 8=6+ 8 =4+ 7 =8+ 5 =11-7=14- 9=17-5=3+ 9 =14- 6=17-9=7+ 5=3+

3、 7 =12- 8=7+ 2 =13-6=14-4=6+ 8 =5+ 86+ 5 =14-5=11 + 9=9+ 6 =3+ 5 =6+ 8 =15-6=11-6=2+ 8 =13- 6=9+ 6 =12-9=17+ 1 =6+ 9 =6+ 9 =8+ 5 =12+ 8=15- 8=14-6=9+ 5 =3+ 6 =11-9=16+ 3=5+ 7 =13- 8=8+ 5 =4+ 8 =5+ 8=4+ 7 =4+ 6 =7+ 9 =16-4=9+ 2=8+ 4 =12- 5=13- 4=14-8=18- 8=7+ 5 =9+ 8 =11-2=15-6=18- 9=6+ 6 =5+ 8 =14-

4、10=16-9=17- 5=5+ 6 =7+ 4 =4+ 8 =17-8=17- 6=15-9=6+ 9 =5+ 7 =18-9=17- 7=14-8=5+ 9 =2+ 9 =9+ 9 =17- 8=12-7=13- 9=7+ 5 =7+ 5 =17- 9=11-6=13- 8=8+ 6 =8+ 6 =6-2=13-5=14- 7=14- 6=5+ 9 =6-3=9+ 4 =12-6=12- 5=13-8=6-4=7+ 8 =14- 5=11-5=17- 10=6 5=7+ 7 =9+ 3 =13- 816- 1 =6-6=6+ 5 =9+ 8 =15- 6=16-2=16- 10 =5+ 7

5、 =7+ 8 =7+ 7 =16-3=15- 1 =12-9=6+ 7 =9+ 9 =16-4=15- 2 =16-8=4+ 9 =9+ 6 =1 + 11 =15- 3=15-7=11-9=8+ 5 =1 + 12=15-4=14-6=12- 8=8+ 9 =1 + 13=2+ 7=11-5=16- 7=11-5=1 + 14=2+ 8=9+ 6 =13- 6=12- 6=1 + 15=2+ 9=8+ 8 =15- 5=14- 9=20- 10=2+ 10=7+ 6 =14- 9=16- 9=19- 1 =2+ 11 =6+ 8 =15- 8=15- 8=19-2=15- 10 =5+ 8

6、=17- 10=4+ 7 =19-3=14- 1 =16-9=12- 3=6+ 6 =19-4=14- 2 =11-8=11-4=8+ 8 =18-5=14- 3=13-7=11-3=9+ 3 =18-6=14-4=15-6=12-4=7+ 7 =18-7=1 + 16=1 + 17=3+ 5 =4+ 14=13+ 6=0+ 17=1 + 18=19- 10=4+ 15=17-5=7-2=1 + 19=18- 1 =4+ 16=16- 10=2+ 14=2+ 0 =18- 2=11- 1 =5-4 =11- 10 =19-5=18- 3=11-2=9-4 =11 + 4=19-6=18-4=1

7、1-3=16- 1 =10+ 4=19-7=3+ 16=11-4=7+ 10=14- 3=19-8=3+ 17=11-5=9-0 =11- 1 =19-9=4+ 4 =6 5 =18+ 1 =3- 1 =2+ 12=4+ 5 =6-6 =6+ 10=13- 2 =2+ 13=4+ 6 =5- 1 =4-0 =12-0=2+ 14=13- 5=5-2 =18- 12=11 + 0=2+ 15=13- 6=5-3 =17- 17=13- 10 =2+ 16=13- 7=10- 6=10+ 2=15+ 4=15-5=13- 8=10- 8=10- 10=3+ 5=15-6=13- 9=3+ 4 =9

8、-0 =10+ 7=15-7=4+ 7 =+ 4 =15-0=0+ 1 =15-8=4+ 8 =8-3 =4+ 1 =19- 14 =15-9=4+ 9 =5-3 =0+ 16=11+ 1 =18- 10=4+ 10=0+ 8 =2+ 2 =17- 1 =17- 1 =4+ 11 =10- 7=13- 12=16+ 2 =17-2=13- 10=2+ 4 =4+ 12=16-4=17-3=12- 1 =6 5 =13+ 4=3+ 4=17-4=12-2=4+ 4 =6 5 =1 + 14=2+ 17=12-4=5- 1 =15- 13=14+ 2 =2+ 18=12- 5=1 + 9 =14+

9、 1 =4+ 12=3+ 3 =4+ 12=18- 5=3+ 12=12+ 5=3+ 4 =4+ 13=17- 11 =0+ 0 =14+ 1 =10+ 8=13+ 1 =5+ 14=7-3 =9- 1 =17- 15=11+ 1 =11+ 0=2-2 =9 5=15-3=19- 1 =7- 1 =14-2=1 + 8=9-8 =2+ 6 =0+ 10=5-3 =12+ 6=11 + 5=19- 18=6- 1 =0+ 4 =9-3=16+ 1 =2+ 11 =2+ 6 =9-8 =8-2=12+ 3=2+ 6 =11- 10=17- 14=17- 11 =17- 12=18- 13=11+

10、3=16- 14=11- 10 =1 + 17=12+ 7=5+ 10=3+ 12=7-6=11 + 5=3+ 1 =12- 10=3-0 =19- 3=2+ 6 =3+ 4 =0+ 11 =19- 15=15- 11 =19-5=16- 14=5+ 10=18-2=7-4=7-3 =18- 2=5-5 =11 + 2=16- 14 =12+ 4=5+ 4 =19- 11 =14- 12=5-2=10+ 7=2- 2 =17- 13=1 + 3 =8 6=1 + 12=7- 3 =2+ 2 =5+ 11 =15- 2 =11 + 1 =6- 0 =3+ 11 =10+ 5=16- 13 =17

11、- 10=7+ 11 =10+ 3=11- 1 =3+ 11 =9-9 =13- 3=17- 3=5-2 =8-7=4+ 12=8 6 =1-0 =7-6 =2+ 17=11 + 2=0+ 18=9 5 =12+ 6=5+ 14=13+ 2=10+ 3=19- 8=10+ 9=14+ 4=16- 1 =18- 11 =8+ 0 =14+ 5=11 + 3=19- 13=17+ 0=17- 1 =1 + 3 =5+ 12=4-3 =2- 2 =13- 10=2+ 10=16- 12 =1 + 14=1 + 7 =17+ 0=8+ 10=7+ 2=15-3=6- 3 =5-3 =10+ 8=17-

12、4=6 5 =13+ 1 =9-8 =2- 1 =7+ 11 =18-7=8 0 =13+ 0=4+ 5 =12- 12 =4+ 5 =6- 6 =0+ 1 =5-3 =19-4=19-5=0+ 19=18- 12=19- 19=11 + 2 =10+ 1 =9- 2 =18- 8=4+ 3 =3+ 15=2+ 15=3- 3 =0+ 1 =7+ 1 =3-0=19-5=12+ 3=12- 11 =4-3 =0+ 9=12- 11 =2+ 11 =4+ 11 =3+ 1 =4+ 10=3+ 3 =7- 3 =12+ 7=4-2 =0+ 11 =18-4=13- 2=3+ 13=1 + 7 =4

13、-0=19- 10=8 0 =14+ 5=13- 1 =4-3=16- 16=1 + 5 =19- 1 =15-3=0+ 5=1 + 8 =15+ 3=14+ 1 =7- 1 =9-0=1 + 13=18- 15=3+ 12=12+ 2=19- 18 =14-4=2+ 4 =12+ 4=1 + 10=17+ 2 =18- 11 =19- 17=17- 11 =7+ 10=16+ 1 =18-7=3+ 6 =5+ 3 =15- 10=12- 10 =0+ 19=2- 1 =17- 11 =18-6=9- 1 =12+ 1 =17- 10=6+ 10=1 + 7 =1 + 7=12+ 3=1+ 1

14、5=17- 16=3-2 =10+ 8=18- 13=7- 6 =18- 1 =18-3=5+ 2=6-0 =3+ 6 =2+ 3 =16- 14=17- 6=1 + 7 =2+ 14=6+ 12=1 + 18=18- 8=18- 16=5+ 13=12- 10=13-0=3-0=18-6=15+ 1 =5+ 10=15-0=0-0=9- 1 =19- 7=3+ 6 =19- 19=19- 1 =6-3 =17- 2=17- 14=17+ 0=11- 10 =13- 1 =2+ 3 =11+ 1 =16-4=12- 10 =19- 15=14+ 0=19- 17=2-2 =7-3=12- 11

15、 =2+ 6 =5+ 12=1 + 15=17- 5=15- 12=1 + 2 =15- 11 =6-0 =16- 3=15- 11 =14+ 3=19- 18=8 0 =18-4=6+ 10=11 + 8=11 + 6=12+ 7=7+ 11 =1 + 13=1+ 1 =11 + 2=15- 11 =16- 13 =4+ 3 =17- 16=19+ 0=13+ 4=12+ 5=3+ 14=1 + 2 =1 + 18=0+ 0 =10+ 3=2+ 13=5+ 14=7- 1 =19-8=5- 1 =18-2=12+ 4=1 + 16=13+ 5=5+ 1 =8 4 =18- 17=4+ 2 =

16、18-6=6+ 1 =6-2 =12+ 3=16- 15=18-4=9 5=9- 1 =17- 15=1- 1 =1 + 16=4+ 1 =2+ 14=6- 1 =17- 16=1 + 13=9-9=10+ 2=6 5 =7+ 1 =9-0 =14- 10 =7-4 =6+ 2 =5-2 =8 0 =16- 6=15- 11 =16+ 3=2+ 4 =9-2 =13- 10 =8+ 10=1+ 14=19- 17=2+ 10=3+ 14=13-3=16+ 1 =10+ 10=14-2=6- 1 =1 + 12=4+ 15=6- 1 =18-6=15- 5=4+ 15=2+ 3 =1 + 0 =

17、19- 14=5+ 3=2+ 4 =18- 13=1 + 11 =12-2=15+ 4=15- 1 =7- 1 =2+ 10=0+ 17=18- 2 =16-2=15- 1 =0+ 4 =10+ 6=19- 13 =10+ 3=17- 6=18- 15=5+ 4 =11 + 5=1 + 14=3+ 15=12- 1 =18-6=5+ 3=16+ 2=1 + 2 =15- 13=19- 19=19- 1 =10+ 7=12+ 3=5+ 14=1 + 14=16- 14 =2+ 5 =16- 1 =3+ 0 =3+ 13=15-4=19-8=18- 16=8-7 =14+ 5=11 + 8=16-

18、 14=2+ 17=18- 4=18- 1 =1 + 4=2+ 12=10- 10=13- 11 =3+ 10=18- 3=11 + 3=19- 7=9-7 =14+ 4=1 + 7=19-5=14- 13=18- 4=8-7 =19-4=17- 14=15- 15=2+ 5 =12- 11 =14+ 3=17+ 2=12- 1 =10+ 5=17- 16=3+ 16=4+ 14=0+ 11 =3+ 11 =10+ 9=15- 12 =13-3=7+ 11 =15- 14=3+ 4 =4-3=1 + 14=14- 12=17- 12=1 + 13=4+ 4=16- 11 =15- 2=12-

19、12=12+ 2=18- 1 =12- 10=11 + 0=6+ 10=10+ 3=8-8=19-8=1 + 2 =17- 17=12+ 4=15+ 2 =2+ 6 =1+ 15=4- 1 =3+ 12=14+ 3=7+ 2 =0+ 11 =5-2 =16+ 2=5+ 3=14- 10=0+ 9 =2+ 5 =7-4 =10+ 7=9-6 =17- 10=10+ 8=19- 10=17- 3=19-5=1 + 8 =15- 3=14- 10=12+ 7=6 5 =15+ 0=1 + 14=11 + 6=10+ 3=15-5=5+ 0 =6+ 12=19- 16=16- 0=4+ 12=14+

20、0=2- 1 =2+ 12=3+ 16=10+ 6=3+ 2 =18- 6=7+ 11 =15- 14 =0+ 16=6- 1 =1 + 10=10+ 6=14- 2 =16-2=5+ 0 =15- 5=2+ 4 =9+ 10=19- 1 =16- 1 =9-2 =16+ 3=15- 12 =2+ 15=13- 12=6+ 13=3+ 12=5-3=2+ 12=1 + 3 =1 + 14=17-5=2+ 13=16-2=9+ 0 =8+ 1 =19-3=18+ 0=18-3=2+ 11 =1-0 =8-7 =19-4=8+ 0 =11+ 1 =7- 1 =13+ 0=19- 15 =1-0 =

21、13- 10=19- 1 =2+ 2 =9-8=19- 19=2+ 10=1 + 4 =5+ 2 =3+ 6=6- 1 =0+ 5 =2+ 2 =8+ 0 =18- 5=6-3 =6+ 2 =1 + 15=3+ 6 =8+ 11 =11- 1 =12-2=19- 18=4+ 12=5+ 3=13- 11 =17- 6=17- 1 =9 5 =17+ 1 =1 + 4 =1 + 2 =3-0 =6- 1 =14+ 2 =16-2=2+ 13=7-0 =2+ 3 =3+ 4=14- 10=13+ 4=7- 1 =17+ 2=14- 12 =14- 13=5+ 2 =12- 11 =3+ 13=18

22、- 7=11 + 2=19- 5=3+ 13=5 0 =4+ 13=11-0=1+ 12=0+ 10=3-0 =2+ 7=13- 10=9- 1 =11+ 0=11 + 5=15- 1 =14-2=2+ 1 =8 6 =0+ 4 =18- 18 =16+ 2=11 + 4=5+ 12=9+ 10=3+ 16=10+ 6=18+ 1 =19- 18=14- 11 =11- 10 =14-3=12- 12=15- 10=8+ 0 =2-2=4+ 3 =15- 2=17- 1 =3+ 10=4+ 3=18- 17=7+ 12=1 + 13=11 + 7=16- 6=15- 12=1+ 14=11+

23、8=16-0=6+ 10=19- 18=19- 10=12+ 3=5+ 3 =17+ 2 =19- 18=19- 12=16- 1 =0+ 11 =8+ 1 =6+ 12=4- 1 =17- 5=1 + 8 =8 6=10+ 2=17- 15=0+ 18=12-2=4+ 2=17-3=2+ 3 =18- 14=15- 1 =9-4=7-3 =16- 16=17- 6=6 5 =10+ 3=1 + 15=12+ 2=2+ 3 =13+ 3=15+ 3=6 5 =16 11 =19 9=4 0 =1 + 4=1 + 12=7 7 =17 4=3+ 2 =19 17 =13 11 =5+ 12=11

24、 + 2=16 12=7+ 2=17 15=2+ 16=4 4 =17 4=17 16 =14+ 1 =7 3 =16+ 1 =0+ 16=15 4=17 16=14 1 =6 2 =0+ 6 =15 12 =16 5=11 + 2=16 1 =19+ 0=14 12 =18 10=5 3 =16+ 3=10+ 4=3+ 3=15 10=16 3=5 5 =8 2 =5+ 1 =1 + 18=12+ 1 =18+ 0=3+ 11 =19 5=2 1 =9 5 =7+ 11 =2+ 6 =18 16 =10+ 5=18 11 =5+ 12=11 + 3=2+ 6=8 8 =10+ 7=13 2=

25、19 5=18 8=5+ 3 =15 12=2+ 6 =2+ 11 =2+ 16=1 + 17=1+ 16=8 4 =11 + 3=8 5=16 15=1+ 16=16+ 3=10+ 10=15+ 1 =16+ 2=5 5 =1 + 13=16 14=7 3=2 1 =3+ 3 =4 0 =9 4 =5 2=10+ 3=10+ 6=7 2 =4+ 3 =16 13 =3+ 11 =18 12=18 10=5 4 =14+ 3=11 10=7 7 =17 5=7 5 =14+ 1 =1 + 7 =4 1 =8 3 =5+ 4 =13 2 =6+ 3 =12 1 =0+ 11 =5 3 =3+ 1

26、4=2+ 12=0+ 1 =9+ 0 =17 3=12+ 3=11 10=7 0 =16 6=17 4=10+ 6=1 + 12=1+ 10=16 0=14 2=3+ 15=7+ 10=15 5=2+ 4 =2+ 1 =13 2 =1 + 16=1+ 16=5+ 10=9-3 =0+ 3=14+ 2=16- 3=1 + 1 =10+ 9=1 + 15=1 + 14=18- 10=19- 3=19-6=9-9=3+ 14=17-4=15- 2=2+ 10=10- 10 =7-5 =15-4=9-2 =17-2=3+ 12=7- 1 =15+ 2=17- 3=4+ 15=16- 0=10-0=16

27、- 14=8 6 =3+ 2 =0+ 0=15+ 1 =8+ 10=10+ 1 =1 + 1 =17- 3=5+ 10=15- 10=18- 5=17- 14=19- 6=2+ 5 =15- 2=1 + 10=7-6 =2+ 13=11 + 6=3- 3 =19- 18=16-5=1 + 10=8-8 =0+ 19=8-2 =3+ 10=2+ 13=11 + 7=15- 2=2+ 2 =13+ 6=5+ 12=9-6 =2+ 10=8-7 =1 + 2 =12+ 7=10+ 6=5+ 14=11+ 1 =6-2 =8-7=1 + 0 =8 4 =16+ 3=18- 1 =7-4=7- 1 =1

28、5-4=4+ 10=0+ 11 =9+ 0=17+ 0=7- 3 =19- 9=5+ 14=3+ 12=19-2=2+ 10=3+ 0 =0+ 7 =0+ 11 =15- 10=7+ 11 =19- 5=0+ 6 =5+ 1 =8-2 =11- 10=12- 1 =19- 16=12+ 0=11 + 0=14+ 2=17- 3=0+ 0 =18- 11 =5+ 2 =12+ 0=3+ 1 =18- 13=1 + 4=4+ 10=4+ 3 =17- 12=18- 1 =19- 5=2+ 4 =19- 19=17- 16=0+ 11 =1 + 15=2+ 3 =4+ 15=12- 11 =1 +

29、17=2+ 4=12+ 3=13- 0=3+ 10=0+ 2 =16+ 1 =15- 14=12- 12=5- 1 =13- 10=6+ 11 =18-7=12+ 1 =1 + 11 =12+ 3=19 1 =19- 11 =17 14=2+ 10=1 + 14=4 4=10+ 9=18 6=18 3=17 14=0+ 18=6 5 =4+ 3 =10+ 9=1 + 15=12+ 5=16-5=3+ 10=14+ 4=1 + 1 =2+ 13=1 + 7 =14 12=0+ 3 =9 5 =2+ 15=12 10=12 1 =17 11 =6+ 1 =19 13 =7+ 2 =2+ 16=18

30、 12=0+ 17=18+ 0=5 1 =14+ 1 =18 5=6+ 11 =4+ 13=10+ 4=16 11 =14+ 4=0+ 17=9 0=11 + 3=13 11 =0+ 12=6 1 =6 5=17 15=2+ 14=3+ 11 =16 5=15 4=15 3=5+ 10=7+ 10=13 2=10+ 2 =15 4=15+ 2=7+ 0 =6+ 12=6+ 13=17 1 =1+ 18=2+ 6 =15 14=3+ 6=3+ 5 =17 10=5+ 12=7+ 0 =12+ 1 =18 8=12+ 1 =5+ 12=12+ 7=1 + 18=6 4 =19 2=18 3=2+

31、10=18 11 =14 10=7 6 =19 3=5+ 11 =1 + 8=3+ 1 =1 + 7 =7 4 =6+ 0 =4+ 4=9 1 =6 1 =2+ 4 =13 10=12+ 4=19 10=17+ 2=7 1 =16 13=0+ 16=2+ 2 =7 1 =18 12=5+ 2 =8 2=7+ 1 =7+ 1 =2+ 17=16 14=3+ 10=19 6=19 14=19 8=5+ 13=2+ 1 =8 4 =9 2 =10+ 1 =2+ 10=6 6=2+ 11 =19 18=7 5 =12+ 3=3+ 13=17 2=7 6 =7+ 11 =3+ 1 =6 3=4+ 13=

32、11 + 2=14- 4=16+ 3=10+ 6=5+ 1 =19- 5=13+ 5=11 + 3=17- 3=7-5 =11 + 4=13- 3=16+ 4=14+ 1 =19- 19=15- 3=13+ 7=17+ 1 =17- 7=13+ 2=11 + 5=15- 2=17+ 2=13+ 6=16- 14=18- 5=14+ 1 =17+ 3=16- 1 =16+ 3=11 + 7=12- 2=18+ 1 =12+ 3=13- 13=11 + 8=14+ 2=19+ 1 =16- 2 =6-2 =11 + 9=16- 4=20+ 0=12+ 8=4+ 12=12+ 3=14+ 3=12+

33、 1 =13+ 4=10+ 0=18- 8=17- 5=10+ 4=15-4=6-2 =12+ 4=10+ 8=3+ 14=13+ 2 =4- 1 =13- 2=18+ 2=19- 1 =16- 3=16- 14=12+ 5=17- 6=19-2=13+ 1 =6+ 12=12+ 7=14+ 6=19-3=15- 1 =15+ 3=16- 5=15+ 1 =19-4=14+ 2 =12- 11 =12+ 8=15+ 2=11 + 1 =12+ 5=4- 1 =13+ 1 =15+ 3=19-6=18- 0=16- 14=18-4=19- 0=11 + 6=13+ 5=12+ 4=17-4=15

34、+ 4=19-9=13- 1 =10+ 1 =13+ 2=12+ 6=18- 1 =15- 5=14+ 5=19- 7=20- 0=11 + 3=14- 1 =18-7=10+ 7=14- 3=18-2=10+ 5=10+ 2=18- 3=15+ 5=18-6=12- 1 =10+ 6=13+ 3=14- 2=17- 1 =11- 1 =16-6=19- 8=16+ 1 =11 + 4=16- 0=10+ 9=13+ 4=16+ 2=13+ 3=13- 3=10+ 3=10+ 5=17- 0=17-2=18- 3=18+ 2=16-4=10+ 1 =4+ 9 =6+ 4=17-6=14+ 3=

35、14+ 5=10+ 6=7+ 4=14+ 6=17- 5=18- 7=9+ 5 =3+ 6=15+ 1 =10+ 8=10+ 2=10+ 4=13- 6=15+ 2=20+ 0=10+ 6=6+ 10=18- 9=15+ 3=12+ 1 =16- 6=8+ 5 =11-7=19-0=10+ 4=10+ 9=14-6=6+ 9=15+ 4=3+ 14=10+ 3=7+ 2 =17- 9=11 + 9=19- 1 =12+ 6=6+ 5 =13- 6=12+ 3=19- 2=20- 0=6+ 8 =14- 5=18-8=19- 3=14- 3=9+ 6 =15- 6=12+ 4=19-4=15+

36、5=8+ 5 =12-9=13-2=16+ 3=14- 2=3+ 6 =12+ 8=12+ 5=11 + 3=16+ 1 =8+ 5 =11-9=12+ 7=16+ 4=16+ 2=7+ 9 =4+ 8=16-5=17+ 1 =17- 0=5+ 7 =16-4=17- 1 =17+ 2=11+ 1 =6+ 8 =7+ 9=11 + 4=17+ 3=19- 6=4+ 7 =16- 7=13+ 3=18+ 1 =11 + 6=5+ 9 =2+ 17=17-2=19+ 1 =19- 9=9+ 4 =12-8=10+ 6=15- 2=18- 1 =7+ 8 =17- 8=17-3=14+ 1 =11+

37、 3=6+ 5 =18- 1 =14+ 1 =12-2=18- 2=4+ 9 =17- 8=17-7=14+ 2=18- 6=5+ 7 =15- 7=15-2=16-4=6+ 8 =7+ 7 =10-4=14+ 1 =14+ 3=9+ 2 =8+ 4 =14+ 6=12-2=17- 5=7+ 4 =5+ 3 =16- 9=14+ 2=10+ 8=5+ 5 =2+ 7 =15+ 5=16-8=6+ 5 =9+ 8 =7+ 8 =16- 2 =14-7=5+ 7 =7+ 8 =7+ 7 =16- 3=12+ 8=12- 9=6+ 7 =9+ 9 =16-4=8+ 6 =16- 8=4+ 9 =9+

38、 6 =1 + 11 =14- 10=15- 7=11-9=8+ 5 =1 + 12=8+ 8 =14- 6=12- 8=8+ 9 =1 + 13=14-9=11-5=16- 7=11-5=1 + 14=7+ 5 =9+ 6 =13- 6=12-6=1 + 15=14-4=8+ 8 =15- 5=14-9=20- 10 =11 + 9=7+ 6 =14- 9=16-9=19- 1 =11-6=6+ 8 =15- 8=15-8=19- 2 =17+ 1 =5+ 8 =17- 10=4+ 7 =19- 3=15-8=16- 9=12- 3=6+ 6 =19-4=16+ 3=11-8=11-4=8+

39、 8 =18- 5=5+ 8 =13- 7=11-3=9+ 3 =18- 6=9+ 2 =15- 6=12- 4=7+ 7 =18- 7=8+ 4 =12- 5=13- 4=14-8=18- 8=7+ 5 =9+ 8 =11-2=15-6=18- 9=6+ 6 =5+ 8 =14- 10=16-9=17- 5=5+ 6 =7+ 4 =4+ 8 =17-8=17- 6=15-9=6+ 9 =5+ 7 =18-9=17- 7=14-8=5+ 9 =2+ 9 =9+ 9 =17- 8=12-7=13- 9=7+ 5 =7+ 5 =17- 9=11-6=13- 8=8+ 6 =8+ 6 =6-2=13

40、-5=14- 7=14- 6=5+ 9 =6-3=9+ 4 =12-6=12- 5=13-8=6-4=7+ 8 =14- 5=11-5=17- 10=6 5=7+ 7 =9+ 3 =13- 8=16- 1 =6-6=16- 10=2+ 15=13- 6=10+ 5=14+ 1 =15- 1 =2+ 16=13- 7=10+ 6=14+ 2 =15-2=15- 5=13- 8=10+ 7=14+ 3=15-3=15- 6=13- 9=10+ 8=14+ 5=15-4=15- 7=4+ 7 =10+ 9=14+ 6=2+ 7 =15- 8=4+ 8 =11 + 1 =15+ 1 =2+ 8 =15

41、- 9=4+ 9 =11 + 2=15+ 2 =2+ 9 =18- 10=4+ 10=11 + 3=15+ 3=2+ 10=17- 1 =4+ 11 =11 + 4=15+ 4=2+ 11 =17- 2=13- 10=11 + 5=15+ 5=15- 10=17- 3=12- 1 =11 + 6=16+ 1 =14- 1 =17-4=12- 2=11 + 7=16+ 2 =14-2=2+ 17=12- 4=11 + 8=16+ 3=14-3=2+ 18=12- 5=11 + 9=16+ 4=14-4=3+ 3 =4+ 12=12+ 1 =17+ 1 =1 + 16=3+ 4 =4+ 13=12

42、+ 3=17+ 2 =1 + 17=3+ 5 =4+ 14=12+ 4=17+ 3=1 + 18=19- 10=4+ 15=12+ 5=18+ 1 =1 + 19=18- 1 =4+ 16=12+ 6=18+ 2 =2+ 0 =18- 2=11- 1 =12+ 7=19+ 1 =19-5=18- 3=11-2=12+ 8=20+ 0=19-6=18-4=11-3=13+ 1 =3+ 14=19-7=3+ 16=11-4=13+ 2=19- 1 =19-8=3+ 17=11-5=13+ 3=19- 2 =19-9=4+ 4 =10+ 1 =13+ 4=19- 3=2+ 12=4+ 5 =10+

43、2=13+ 5=19-4=2+ 13=4+ 6 =10+ 3=13+ 6=19- 5=2+ 14=13- 5=10+ 4=13+ 7=19- 6=19-7=20- 0=10- 10=3+ 3 =5+ 4=19-8=15- 5=19- 11 =10+ 1 =14- 12 =19-9=14- 1 =5+ 2 =13- 11 =7-6=18- 1 =14- 2=18- 11 =4+ 3 =6+ 4=18-2=14- 3=14+ 2=18- 14=7+ 4=18-3=19- 0=17- 11 =17- 12=10- 7=18-4=14-4=18- 6=14- 14=8+ 4=18-5=13- 1 =1

44、6- 11 =5+ 3 =7+ 9=18-6=13- 2=15- 11 =19- 14=9+ 4=18-7=13- 3=17+ 2=6+ 3 =11 + 4=18-8=18- 0=9-7 =9+ 3 =19- 7=17- 1 =12- 1 =14- 11 =16- 14=12+ 4=17-2=12-2=17- 6=10+ 3=0+ 8=17-3=11- 1 =12- 11 =14- 1 =13+ 4=17-4=16- 0=11- 11 =15-3=9- 1 =17-5=17- 0=8+ 7 =6 5 =1 + 5=17-6=2+ 1 =9+ 1 =11 + 3=18- 8=17-7=12+ 3=5+ 1 =8 6 =17- 5=16- 1 =19- 15=11+ 1 =13+ 3=9-2=16-2=13+ 5=16+ 1 =3+ 2 =4+ 5=16-3=8+ 1 =17+ 1 =18- 10=7+ 6=16-4=15- 15=1 + 2 =14+ 3=19- 10 =16-5=13- 2=5+ 8 =16