【必备】苏教版一年级上册专题训练---20以内加减法口算题(1000道)

一年级20以内加减法口算题（练习）

班级： 姓名：

2+18= 18-6= 16-1=

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

12+5=

19-11=

2+15=

9-4=

6+8=

10+1= 20-1=

2+7=

9+1=

13+7=

1

15-12=

19-4= 3+5= 17+3=

3+8= 8+4= 17+3=

17+3= 4+12= 14+3=

1+14= 13-3= 12-8= 14+3= 6+13= 12+3= 5+2= 12-11= 15-5= 18-12= 8+6= 1+5= 2+5= 17-3= 13+5= 5+6= 7+7= 20-13= 20-1= 7+1= 3+13= 3+14=

9-8=

19-18=

9-4=

3+7=

17-1=

6+7=

5+8=

20-6=

1+19=

2

10+2= 13+6=

17-16= 7+13= 10-2=

11+6= 1+8= 14+2=

9+5= 2+10= 1+12=

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

8+2=

9+9=

19-5=

17-10=

9+10=

6+14=

8-6=

19-12=

16-4=

2+12=

3

1+4=

2+8= 15-8= 19-16=

19-4= 14+3= 3+4=

19-17= 5-1= 15+5=

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

11-3=

20-15=

20-19=

9+7=

17-9=

12-2=

13-1=

11+7=

4

19-16= 18-4= 14-13=

6+7= 15-5= 16-5=

12-1= 4+5= 13+4=

5-2= 7-2= 5+3=

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

7+8=

19-16=

13-7=

19-18=

13+2=

2+5=

16-10=

18-16=

11+7=

10-8= 5

14-6=

20-15= 10-9= 20-8=

20-11= 20-5= 20-18=

14+2= 14-10= 6+11=

12+7= 18-4= 16-4= 14+2= 14-6= 11-3= 9+6= 1+8= 14-3= 12+1= 18-1= 12-10= 9+8= 4+4= 2+1= 4+12= 12-1= 14+5=

6+3=

1+17=

10-2= 12+6=

5+13= 16-14=

3+13= 7+6=

19-15=

16+1=

6

18-12=

12-6= 15+2=

18-5= 13-11=

9-2= 16-7= 16-15=

18-14= 18-5= 16+4=

20-16= 17-5= 20-19=

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

6+2=

18-11=

13-12=

19-4=

6+13=

20-6=

7+3=

14-8=

20-15=

9-4=

7

5-2=

16-6= 14+1= 2+5=

2+17= 2+10= 8+12=

14+3= 8-2= 17+1=

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

1+8=

19-12=

18-6=

18-14=

17+3=

2+5=

8+9=

7+12=

5-1=

12+2=

8

19-18=

15-5= 12-3= 6+4=

7+5= 19-8= 18-11=

19-13= 8+9= 10-4=

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

7+4=

10+1=

15-1=

2+11= 4+15=

15+2= 18+2=

9

19-9=

5+4= 4+7= 2+14=

6+1= 13-4= 10-9=

19-11= 14+6= 2+18=

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

4-1=

8+1=

16-2=

10+9=

18-5= 3+16=

1+6=

20-1=

7+10=

10

13+3= 16+4=

9-7= 19-10= 20-4=

6+6= 15-10= 8+11=

14-3= 4+9= 19-1=

16+2= 14-1= 2+14= 6+8= 8-1= 20-16= 5+12= 5+6= 4+11= 5+2= 3+11= 18-7= 3+4= 16-2= 7+8= 20-13= 6+5= 5+2= 11-6= 5+8= 18-17= 4+14= 20-13=

17-2=

6+3= 4-2=

17-13=

14+1= 9-2=

10+9=

13-1=

13-2= 11

14-5=

13-6= 13-5= 2+4=

8+7= 11+2= 5+3=

4+4= 15-10= 10-9=

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

9+6=

8-2=

14+2=

1+2= 20-7=

5+10=

19-14=

4+16=

10-3=

7+5=

12

5+10= 15-4=

14+6= 7+4= 5+10=

17-15= 4+15= 14-4=

14-10= 16-13= 15-2=

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

5+2=

2+1=

9+11=

20-14=

12-7=

9+5=

14-6=

7+9=

4+6=

13

16-14=

20-5= 12-9= 6+2=

17+3= 19-6= 2+14=

20-8= 4+10= 7+2=

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

4+12=

12-5=

4+12=

9+6=

19-11=

20-4=

15-11=

18-16=

9+7=

15-11=

14

10-7=

17+1= 14-8= 1+18=

9+2= 1+14= 17-7=

18-17= 2-1= 5+12=

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

10-5=

9+3=

12+5=

20-8= 16-7=

11-9=

14+3=

3+8=

17+2= 7-6=

15

17-12= 5+9=

15-9= 10+10= 18-15=

6-2= 3+14= 18-11=

2+3= 15-13= 19-16=

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

6-1=

11-10=

20-10=

2+7=

3+11=

17-1=

15+3=

14-9=

1+7=

3+11=

16

16-14=

3+10= 12+8= 11+1=

20-7= 1+6= 15+3=

10-6= 11+4= 7+8=

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

6+3= 4+11=

13+4=

6+8= 9+8= 2+5=

20-19= 1+6= 5-2=

16-13=

17

17-15= 12+1= 6+7=

14-8= 13-11= 12-8=

10-4= 5+4= 11+8=

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

11+4=

13-9=

9-3=

20-18=

14-10=

1+7=

6+3= 19-1=

12-2=

19-16=

18-2=

18

2+15= 2+10= 8+8=

9+5= 5+2= 10+9=

17-7= 9+11= 15-2=

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

3+14=

19-6=

3+11=

4+5=

14-13=

14-9=

13+1=

8-1=

16-4=

15+1=

19

16-15= 10+8=

16-4= 3+2= 12-10=

17-1= 18-10= 15-8=

1+2= 1+15= 3+3=

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

20-17=

2+17=

6+5=

11-6=

7+12=

8+3=

3+1=

4+16=

11-4=

11-9=

20

15-13=

14-6= 8+9= 10-7=

17-3= 19-11= 5+6=

10+10= 10+9= 2+13=

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

11+4=

7+7=

6-1=

3+9=

7+10=

3+5=

8+11=

2+12=

20-8=

2+6=

21

11+5= 6+8= 7-3=

9+4= 1+19= 12-10=

1+6= 20-10= 16-9=

17-13= 14-13= 9+3=

12+7= 13+4= 16-11=

6+8= 20-9= 18-2=

3+8= 15-2= 10+6=

5+12= 17+3= 20-5=

2+6+2= 5+3+2= 4+0+3= 10-3-7= 9-3-6= 10-1-4= 7-2+4= 8+2-6= 10-4+3= 3+6-8= 8-7+16= 6+10-5= 19-4-5= 10-8+3= 7+8-4= 5+8-3= 2+3+7= 9+7-6= 7-4+7= 8+1+6= 11-1+5= 7-4+8= 8-3+8= 9+9-7= 8+7-5= 6-2+7= 16+2-2= 9+4-3= 11-0+7= 4+1+4= 8+6+4= 8+9-6= 9-1+7= 7+8-5= 4+1+6= 8+8-8= 11+7-7= 8-2+8= 19-4-4= 8+6-4=

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

22

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

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

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

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

23

2+5+4= 6+4+2= 20-1-8= 19-10-5= 15-3-4= 10+6+1= 20-3-2= 9+1+7= 13-6-6= 19-3-6=

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

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

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

24

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

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

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

25

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

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

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

16-8-1= 4+7+5= 4+3+3= 15-7-1= 8+3+5= 15-3-2= 10+3+3= 19-6-1= 21-9-2= 15-8-5= 13-2-4= 20-3-5= 19-3-2= 7+7+5= 16-6-1= 5+4+2= 2+5+3= 7+1+9= 5+3+8= 11-6-5= 18-2-2= 5+8+3= 1+3+8= 4+7+1= 13-5-4= 9+5+1= 17-3-9= 13-3-4= 10+6+2= 15-4-3=

26

19-3-1= 12-2-2= 11-10-1= 7+2+9= 1+10+5= 12-3-7= 7+2+2= 5+7+3= 16-5-2= 4+1+7=

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

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

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

27

10-6-3= 10+4+1= 20-9-8= 6+7+3= 14-3-10= 1+8+6= 9+9+2= 6+9+4= 2+8+9= 15-5-7= 18-9-6= 19-1-8= 18-5-8= 20-3-8= 14-6-5= 11-1-5= 14-7-4= 5+9+2=

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

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

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

6+4+6= 16-6-6= 1+10+7= 19-5-6= 13-2-4= 5+9+4= 6+9+4= 15-3-7= 5+6+9= 7+6+5= 13-1-7= 17-4-5=

28

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

6+7+5= 11-4-4= 20-3-10= 15-8-5= 11+1+3= 3+8+7= 3+7+5= 19-3-2= 13-10-2=

一、在（）里填上合适的数。

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

29

)=15 10+( 9+( )=17 ( )-5=9 ( )+8=14 10+( )=16 18-( )=9 ( )+8=12 4+( )=8 ( )+3=9 14-( )=10 ( )+2=16 ( )-5=13 9+( )=18 19-( )=3 ( )+6=15 10+( )=17 17-( )=10 )=20

19-( )=7 ( )+7=15 17-( )=7 7+( )=15 5+( )=14 ( )-12=3 5+( )=10 ( )+1=20 12+( )=18 18-( )=4 15+( )=17 15-( )=10 ( )+11=15 ( )-7=11 ( )+5=12 14+( )=18

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

二、在○里填“>”、“<”或“=”。

6+4○11 6+4+2○6+6 7+8○8+2+6 17○8+8 7+3○20-3-7 4+3+5○14-2 6+7○17-7+4 12○15-3 6+7○8+6 5+8○8+5 8+5○3+9 3+2○20-4

4+6○20-9 17-3○7+7 16-5○6+6 13○7+7 20○10+9 6+7○9+2 5+8○6+9 13-3+5○9+5

三、括号里最大能填几。

10+5>( ) 6+3>4+( ) 7+9>( )+7

30

9+4>( )+9 5+9>( )+10 8+10>( )-0 8+5>( ) 6+( )<17-5 ( )+0<8+4 ( )+7<8+3

10+1= 14+5= 18-7= 10+2= 10+6= 16-6=

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

15-2= 14+1= 12-2= 14+2= 16-4= 14+3=

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

11+1= 19-6= 11+6= 19-9= 18-1= 11+3=

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

18+2= 17-6= 14+6= 15+1= 15+2= 15+3=

19-0= 15+4= 11+9= 12+3= 18-8= 12+4= 13-2=

31

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

16+3= 11+3= 16+4= 17+1= 17+2= 17+3=

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

7+4= 5+5= 4+9= 10+6= 6+10= 8+5= 14-6= 7+2= 6+5= 8+5= 3+6= 8+5= 7+9= 5+7= 5+9= 9+4= 7+8= 6+5= 4+9= 8+4= 5+3= 2+7= 6+4= 7+4= 18-9= 11-7= 6+9= 17-9=

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

32

15-7=

15-9= 14-8= 12-7= 11-6= 13-5= 9+4= 7+8= 7+7= 6+5= 5+7= 12-9= 16-8= 15-7= 14-6= 11-5= 9+6= 8+8= 7+6= 6+8= 5+8= 16-9= 11-8= 13-7= 15-6= 12-5= 9+8= 5+8= 7+4= 6+9= 5+9= 13-9= 13-8= 14-7= 12-6= 14-5= 9+3= 9+8= 7+8= 6+7= 4+9=

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

12-8= 16-7= 13-6= 15-5= 14-9= 15-8= 12-3= 11-4= 11-3= 12-4= 13-4= 11-2= 4+8= 5+7= 2+9= 7+5= 8+6= 14-6= 11-5= 13-8= 15-6= 7+7= 9+9= 9+6= 8+9= 11-5= 12-6= 14-9= 16-9= 15-8= 6+6= 8+8= 9+3= 7+7=

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

2+8= 2+9= 2+10= 2+11= 15-10=

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

33

1+11= 14-2=

2+17= 2+18= 19-10= 18-1= 18-2= 18-3=

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

15-3= 6+6= 13-5= 12-9= 7+6= 12-5= 13-8= 6+7= 15-5= 14-9= 13-4= 8+6= 9+9= 16-9= 7+7= 9+9= 19-15= 19-4= 16-5= 12-7= 9+2= 8+4= 5+6= 15-9= 14-8= 12-7=

9+4= 7+8= 7+7= 6+5= 15-7= 14-6= 11-5= 9+6= 6+8= 5+8= 16-9= 11-8= 13-7= 9+8= 5+8= 7+4= 6+9= 5+9= 14-7= 12-6= 14-5= 9+3= 9+8= 4+9= 11-9= 12-8= 16-7=

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

14-8= 15-6= 16-9= 17-8=

7+5= 8+6= 5+9= 13-8= 12+1= 13+5= 8+1= 15-15= 13-2= 8+9= 34

16-8= 15-8=

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

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

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

10+1= 13-11= 4+3= 18-14= 17-12=

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

13+4= 15+4= 14-12= 17-6= 6+14= 7+4= 8+4= 7+9= 9+4= 11+4= 19-7= 12+4=

13+4= 19-1= 11+5= 18-8= 17-5= 4+15= 7+6= 19-10= 8+6= 10+6=

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

4+8= 19-12= 11+8= 4+7= 10+9=

35

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

14-9= 7+8= 6+8= 7+9= 16-7= 9+5= 12-8= 13-8= 9-3= 5+5= 14-6= 8+5= 9+4= 8+4= 14-5 = 7+9= 15-7= 12+8=

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

6+8= 6+8= 14-6= 9+8= 17-6= 4+7= 6+9= 4+7= 6+8= 10+4= 9+6= 4+7= 5+7= 6+9= 17-8= 15+5= 14-9= 9+7= 17-5= 5+7= 8+5= 19-8= 3+9=

9+5= 6+3= 9+2= 6+10= 8+5= 5+9=

7+7= 17-9= 4+8= 18-1= 16-8= 11-6=

3+7= 4+7= 9+11= 8+5=

12-9= 7+4= 8+5= 3+6= 13-6= 17-8= 14-7= 15-6= 12-9= 12+8= 11-9= 16-4=

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

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

14-7= 12-6= 4+9= 11-9= 15-8= 17-10= 11-2= 14-10= 14-6= 12-5= 9+6= 8+5= 14-9= 16-9= 7+7= 14-8= 7+5= 8+6= 16-3= 16-4= 20-10= 19-1= 18-7= 18-8= 17-7= 17-8= 16-6= 16-10= 12+8= 2+9= 14-3= 14-4= 19-5= 19-6= 14-5= 12-8= 4+8= 11-5= 8+9= 15-8= 15-6= 5+9= 1+11= 19-2= 18-9= 17-9= 15-1= 2+10= 1+16= 19-7= 37

9+3= 16-7= 5+7= 13-8 11-7= 4+7= 16-9= 13-8= 1+12= 19-3= 17-5= 16-2= 15-2= 2+11= 1+17= 19-8= 9+8= 7+8= 13-6= 15-5= 12-4= 2+9= 7+5= 15-6= 7+7=

6+6= 8+8= 17-8= 18-9= 17-10= 16-1= 1+13= 1+14= 19-4= 18-5=

16-3= 16-4= 15-3= 15-4= 15-10= 14-1= 1+18= 1+19= 19-9= 2+12=

12-3= 11-4= 11-3=

2+13= 2+14= 2+15= 2+16= 15-5=

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

4+13= 4+14= 4+15= 4+16= 11-1= 11-2=

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

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

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

38

16-7= 13-9= 5+7= 13-9= 11-5= 8+8= 8+4= 15-8= 15-9= 15-9= 14-5= 15-8= 12-4= 13-8= 14-8= 11-2= 15-7= 12-4= 11-4=

20-5= 15-8= 20-9= 11-3= 15-7= 17-8= 12-7= 16-4= 12-4= 14-8= 11-8= 12-9= 20-3= 20-5= 14-7= 12-6= 11-6= 6+7= 17-9= 7+8= 16-9= 15-8= 17-8= 6+9= 14-9= 13-7= 11-9= 14-6= 15-6= 17-8= 11-7= 11+2= 8+6= 13-6= 15-4= 15-8= 12-6= 16-7= 11-9= 14-3=

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

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

10-5= 6+5= 6+7= 9+9= 9+3= 20-4= 20-3=

39

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

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

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

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

40

5+9= 17+0= 2+16= 4+7= 16-13= 5+8= 8+5= 9+4= 6+8= 7+8= 6+9= 5+6= 4+7= 8+4= 6+6= 0+16= 7+5= 5+7= 9+0= 7+6= 9+8= 8+8= 7+5= 5+6= 5+8= 7+7= 7+9= 10+5= 6+7= 8+6= 7+5= 6+9= 8+5= 9+10= 4+7= 10+10= 0+12= 6+7= 5+6= 7+8=

6+6= 9+3= 5+8= 9+9= 2+9= 4+8= 5+7= 15+5= 3+8= 5+8= 7+6= 5+9= 8+7= 5+8= 7+9= 9+8= 5+7= 8+4= 9+3= 9+9= 3+8= 6+5= 7+4= 8+8= 6+8= 2+9= 7+7= 3+7= 6+6= 6+9= 8+6= 3+8= 5+5= 12-4= 15-6= 14-7= 11-8= 14-9= 15-7= 15-9=

16-7= 13-6= 16-9= 11-5= 12-8= 11-7= 18-9= 17-8= 14-8= 13-7= 15-8= 14-5= 11-9= 17-9= 11-5= 13-8= 15-7= 12-8= 14-9= 13-7= 16-8= 20-10= 17-7= 14-9= 17-8= 11-6= 12-6= 13-8= 14-6= 14-8= 11-7= 19-10= 16-6= 12-5= 13-6= 18-0= 13-8= 14-5= 15-6= 11-9=

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

41

6+8= 14-5= 7+7= 13-13= 18-9=

7+5= 6+8= 2+9= 11-6= 18-0= 16-10= 3+8= 6+9= 12-10= 18-8= 7+8= 4+9= 12-8= 0+9= 8+8= 13-8= 12-6= 15-6= 3+8= 7+5= 18-8= 18-0= 13-5= 11-4= 11+2= 11-4= 20-6= 15+5= 12-1= 11+10= 13+9= 23+7= 20-3= 20+0= 20-10= 13-1= 17-6= 14-8= 19+6= 17-7=

16+2= 22-2= 18-1= 11+3= 11-6= 18-5= 12-9= 11-8= 16+6= 12-3= 16-2= 14-9= 13-2= 15-10= 17+3= 15-1= 12+2= 10-4= 11-6= 19-3= 15+4= 12-6= 16+1= 14-4= 11+9= 17+8= 10+0= 11-9= 12+8= 16-6= 19+10= 18-7= 17-8= 16+4= 20-20= 15-2= 11-3= 16-1= 5+9= 19+5=

11-7= 13+9= 11-10= 12-8= 12+10= 10+6= 12+3= 17+5= 19+3= 11+6= 12-4= 10+3= 12-7= 16+7= 19-1= 11+4= 12-7= 11-8= 19-2= 4+7= 16+5= 18+3= 19+2= 61+3= 14+8= 14-2= 11+6= 14-1= 17+4= 11-1= 15+6= 11+5= 15-8= 6+10= 12+4= 13+3= 19-9= 19+8= 10-10= 15+7=

8-5= 13+8= 20-10= 17+0= 18-6= 17+1= 17+7= 13+9= 14-3= 15-7= 13-8= 9+9= 14-7= 15+3= 7+8= 15+8= 10+6= 19-6= 10+7= 9+7= 18-10=

42

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

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

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

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

1+10= 2+19= 3+17= 10-3= 10+0= 10-10= 13-1=

43

17-6= 14+8= 9+16= 17-7= 6+12= 12-2= 18-12= 16+13= 11-5= 18-5= 12-9= 10-8= 16+6= 12-3= 16-2= 14-9= 11-8= 7+18= 12+8= 25-2= 7+13= 13+5= 11+5= 15+5= 22-2= 15+5= 24-4= 19+1= 27-7= 10+9= 18-8= 20-5= 16+2=

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

16+6= 17+7= 9+22= 9+8= 23-3= 19-6= 18-4= 17-3= 14-2= 15-3= 15-9= 19-6= 14-3= 18-5= 19-5= 19-4= 19-8= 16+4= 14+3= 19-5= 17-9= 18-8= 13-5= 14-7= 14-6= 15-2= 11-6= 12+3= 14+4= 15+5= 12+8= 16-9= 19-2= 15+2= 17+3= 19+1= 18+2= 1+19= 12+8= 3+17=

14+6= 25+5= 16+4= 17+3= 8+12= 19+1=

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

44

9+8= 11+7= 23+3= 5+8= 8+5= 9+4= 6+8= 7+8= 6+9= 5+6= 4+7= 8+4= 6+6= 0+16= 7+5= 5+7= 9+0= 7+6= 9+8= 8+8= 7+5= 5+6= 5+8= 7+7= 7+9= 10+5= 6+7= 8+6= 7+12= 6+9= 8+5= 9+10= 4+7= 10+10= 0+12= 6+7= 5+6= 6+6= 9+3= 5+8=

9+9= 7+6= 8+4= 6+8= 3+8= 14-9= 16-9= 13-7= 15-7= 14-9= 11-7= 14-5= 11-8= 16-9= 14-0= 13-7= 12-2=

2+9= 4+8= 5+7= 15+5= 3+8= 5+8= 5+9= 8+7= 5+8= 7+9= 9+8= 5+7= 9+3= 9+9= 3+8= 6+5= 7+4= 8+8= 2+9= 7+7= 3+7= 6+6= 6+9= 8+6= 15+5= 7+8= 12-4= 15-6= 14-7= 11-8= 15-9= 16-7= 13-6=

11-5= 12-8= 11-7= 18-9= 17-8= 14-8= 14-5= 11-9= 17-9= 11-5= 13-8= 12-8= 14-9= 13-7= 16-8= 20-10= 17-7= 17-8= 11-6= 12-6= 13-8= 14-6= 14-8= 16-6= 12-5= 13-6= 18-0= 13-8= 11-9= 16-7= 15-5=

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

45

15-7= 15-8= 19-10= 15-6= 15+5=

7+7= 13-13= 18-9= 7+5= 6+8=

2+9= 11-6= 18-0= 16-10= 3+8= 6+9= 12-10= 18-8= 7+8= 4+9= 12-8= 0+9= 8+8= 13-8= 12-6= 15-6= 3+8= 7+5= 8-8= 8-0= 13-5= 11-4=

46