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20以内加减混合2000道练习题.xlsx

1、第 1 页,共 11 页一年级上册20以内加减混合练习题姓名:8 + 4 = 15 - 7 = 14 - 8 = 5 + 7 = 5 + 9 =14 - 6 = 12 - 5 = 5 + 8 = 13 - 4 = 16 - 8 =5 + 9 = 7 + 4 = 13 - 6 = 16 - 9 = 8 + 5 =15 - 6 = 13 - 9 = 9 + 2 = 9 + 6 = 15 - 7 =11 - 5 = 3 + 8 = 18 - 9 = 6 + 7 = 9 + 2 =7 + 9 = 11 - 9 = 11 - 6 = 14 - 5 = 16 - 7 =9 + 5 = 7 + 6 = 12

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

3、)= 13 3 +( )= 12 11 -( )= 42 +( )= 11 18 -( )= 12 8 +( )= 14 ( )- 7 = 10 3 +( )= 11( )- 12 = 0 6 +( )= 15 ( )- 9 = 4 7 +( )= 12 ( )- 3 = 159 +( )= 13 ( )- 7 = 12 18 -( )= 14 ( )+ 3 = 12 ( )+ 9 = 18( )- 8 = 8 ( )+ 9 = 13 ( )+ 9 = 18 15 -( )= 8 ( )- 7 = 88 +( )= 17 14 -( )= 7 ( )- 6 = 10 ( )- 3 = 12 1

4、5 -( )= 1312- 3 + 4 = 6 - 5 + 14 = 4 + 9 - 6 = 4 + 7 - 3 = 16 + 3 - 8 =19 - 9 + 7 = 4 + 9 - 7 = 3 + 15 - 9 = 12 - 8 + 5 = 15 - 6 - 4 =9 + 6 - 7 = 13 - 7 - 4 = 5 + 7 + 4 = 17 - 9 + 8 = 10 + 5 - 2 =11 - 8 + 4 = 14 - 7 + 5 = 11 - 4 + 8 = 18 - 8 - 5 = 6 + 4 - 1 =6 + 8 - 9 = 11 - 7 + 6 = 15 - 7 - 4 = 13

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

6、- 6 = 8 + 9 = 16 - 7 = 6 + 7 =9 + 2 = 7 + 6 = 15 - 9 = 9 + 3 = 12 - 7 =8 + 6 = 15 - 7 = 9 + 5 = 14 - 8 = 13 - 9 =16 - 9 = 3 + 9 = 13 - 4 = 3 + 8 = 6 + 12 =14 - 7 = 8 + 3 = 15 - 8 = 9 + 8 = 5 + 8 =5 + 9 = 17 - 9 = 8 + 8 = 11 - 7 = 15 - 7 =11 - 5 = 9 + 7 = 14 - 6 = 8 + 5 = 17 - 4 =第 2 页,共 11 页7 + 8 =

7、8 + 4 = 11 - 4 = 6 + 9 = 9 + 9 =( )+ 9 = 11 11 -( )= 9 ( )+ 6 = 15 ( )- 7 = 5 11 -( )= 217 -( )= 9 8 +( )= 17 15 -( )= 9 5 +( )= 14 ( )+ 8 = 11( )- 7 = 7 ( )- 9 = 9 3 +( )= 11 ( )- 7 = 9 13 -( )= 5( )+ 9 = 13 15 -( )= 6 ( )+ 6 = 12 9 +( )= 18 ( )+ 14 = 18( )- 8 = 5 4 +( )= 12 7 +( )= 14 ( )- 6 = 6 1

8、8 -( )= 169 +( )= 16 ( )- 7 = 8 ( )- 8 = 3 ( )+ 7 = 11 9 +( )= 1817 - 6 - 7 = 4 + 5 + 9 = 6 + 8 + 4 = 13 - 8 + 6 = 5 + 5 - 2 =8 + 8 - 7 = 11 - 4 + 5 = 15 - 8 + 9 = 3 + 7 + 6 = 16 - 8 - 5 =10 + 6 - 8 = 16 - 5 - 6 = 3 + 8 + 8 = 16 - 5 - 8 = 4 + 7 - 9 =14 - 8 + 8 = 9 + 7 - 6 = 12 - 6 + 2 = 6 + 8 + 3 =

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

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

11、 = 15 - 6 = 7 + 6 = 9 + 4 = 15 - 7 =11 - 5 = 5 + 7 = 13 - 8 = 18 - 9 = 7 + 7 =18 -( )= 9 ( )+ 8 = 11 9 +( )= 17 11 -( )= 3 18 -( )= 15( )+ 9 = 14 13 -( )= 9 ( )+ 3 = 11 ( )+ 8 = 13 3 +( )= 1114 -( )= 7 ( )- 5 = 9 ( )- 9 = 6 2 +( )= 11 9 -( )= 4( )- 5 = 8 ( )+ 9 = 18 14 -( )= 9 ( )+ 7 = 14 18 -( )= 1

12、2( )- 8 = 8 9 +( )= 12 ( )+ 9 = 12 ( )- 8 = 9 ( )- 7 = 54 +( )= 11 ( )- 4 = 7 16 -( )= 7 5 +( )= 14 9 +( )= 1914 - 5 + 3 = 4 + 4 + 9 = 7 + 7 - 8 = 13 - 6 + 6 = 7 + 3 - 2 =4 + 5 + 3 = 14 - 5 + 9 = 5 + 4 + 8 = 9 + 7 + 2 = 13 - 5 - 4 =14 - 7 + 4 = 4 + 7 + 4 = 13 - 8 + 2 = 13 - 4 + 5 = 6 + 6 - 9 =4 + 6

13、+ 6 = 8 + 6 - 7 = 14 - 5 + 8 = 10 + 6 + 1 = 14 - 5 - 5 =13 - 5 - 7 = 14 - 8 + 1 = 3 + 8 + 7 = 10 - 8 + 7 = 19 - 5 - 9 =7 + 6 + 5 = 13 - 3 - 8 = 16 - 6 - 9 = 6 + 6 - 9 = 4 + 4 - 8 =4 + 7 = 6 + 9 = 16 - 7 = 5 + 7 = 4 + 14 =第 3 页,共 11 页18 - 9 = 15 - 6 = 6 + 7 = 8 + 9 = 11 - 5 =8 + 7 = 14 - 8 = 11 - 5 =

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

15、3 - 4 =12 - 4 = 13 - 6 = 9 + 7 = 11 - 4 = 6 + 6 =9 + 8 = 12 - 7 = 13 - 8 = 7 + 7 = 11 - 9 =6 + 6 = 4 + 9 = 14 - 6 = 9 + 6 = 6 + 7 =( )- 8 = 5 ( )+ 8 = 12 ( )- 9 = 9 4 +( )= 13 14 -( )= 69 +( )= 18 ( )- 6 = 6 ( )+ 8 = 11 ( )+ 6 = 12 ( )+ 7 = 14( )- 3 = 8 6 +( )= 11 17 -( )= 9 16 -( )= 8 12 -( )= 612

16、-( )= 3 ( )+ 9 = 14 ( )- 6 = 8 ( )+ 6 = 14 ( )+ 5 = 11( )+ 9 = 11 11 -( )= 9 ( )- 9 = 7 12 -( )= 5 11 -( )= 715 -( )= 7 ( )+ 7 = 13 9 +( )= 13 3 +( )= 12 5 +( )= 1215 - 3 + 4 = 7 + 6 + 6 = 12 + 4 - 3 = 16 - 7 + 7 = 4 + 7 - 2 =10 + 5 - 6 = 6 - 3 + 9 = 12 - 3 - 6 = 7 + 4 + 7 = 17 - 4 - 9 =18 - 6 - 5 =

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

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

19、 + 9 = 6 + 6 =6 + 8 = 14 - 6 = 5 + 7 = 13 - 4 = 14 - 8 =18 - 9 = 7 + 9 = 11 - 4 = 7 + 12 = 15 - 3 =15 - 6 = 12 - 3 = 5 + 8 = 14 - 7 = 3 + 9 =5 + 9 = 11 - 5 = 13 - 6 = 2 + 9 = 13 - 8 =( )+ 7 = 15 ( )- 6 = 7 ( )+ 3 = 11 4 +( )= 11 15 -( )= 915 -( )= 8 ( )+ 8 = 11 13 -( )= 9 ( )- 9 = 2 ( )+ 8 = 15第 4 页

20、,共 11 页( )+ 9 = 18 16 -( )= 9 2 +( )= 11 6 +( )= 14 ( )- 4 = 615 -( )= 6 ( )- 8 = 9 13 -( )= 8 ( )+ 5 = 12 13 -( )= 6( )+ 9 = 12 9 +( )= 16 ( )- 6 = 9 15 -( )= 9 ( )+ 4 = 1214 -( )= 8 ( )- 8 = 6 ( )+ 5 = 14 ( )+ 9 = 13 9 +( )= 1111 - 2 - 8 = 7 + 2 + 9 = 11 - 2 + 5 = 2 + 3 + 3 = 9 + 4 - 2 =6 + 2 + 5

21、= 8 - 2 + 6 = 8 - 3 + 2 = 6 + 2 + 7 = 12 - 7 - 2 =9 + 3 - 6 = 10 - 2 - 7 = 8 - 2 + 9 = 8 + 2 - 8 = 13 - 5 + 9 =2 + 2 + 1 = 6 - 2 + 3 = 2 + 2 + 8 = 2 + 8 + 2 = 7 + 4 + 8 =7 - 3 + 8 = 4 + 5 - 7 = 6 - 3 + 4 = 8 - 5 + 1 = 18 - 3 - 9 =2 + 2 + 4 = 6 + 2 + 6 = 12 + 2 - 9 = 6 - 2 + 7 = 4 + 6 - 8 =11 - 6 = 5

22、 + 8 = 15 - 6 = 4 + 9 = 5 + 7 =9 + 7 = 7 + 12 = 9 + 5 = 4 + 12 = 2 + 9 =15 - 7 = 8 + 9 = 5 + 14 = 7 + 8 = 14 - 5 =14 - 5 = 11 - 2 = 8 + 8 = 3 + 9 = 8 + 7 =5 + 9 = 13 - 5 = 6 + 7 = 11 - 3 = 15 - 6 =13 - 4 = 9 + 2 = 12 - 5 = 9 + 6 = 5 + 6 =6 + 6 = 13 - 6 = 7 + 9 = 12 - 6 = 9 + 8 =2 + 9 = 6 + 8 = 16 -

23、7 = 13 - 7 = 12 - 9 =12 - 3 = 16 - 8 = 4 + 8 = 9 + 8 = 4 + 9 =3 + 14 = 6 + 9 = 14 - 6 = 12 - 4 = 11 - 4 =8 + 7 = 17 - 8 = 9 + 3 = 11 - 5 = 8 + 6 =14 - 8 = 3 + 15 = 11 - 4 = 9 + 9 = 12 - 7 =9 + 4 = 7 + 7 = 14 - 7 = 5 + 7 = 9 + 4 =17 -( )= 9 ( )+ 9 = 16 ( )- 7 = 4 ( )+ 9 = 14 ( )+ 8 = 16( )+ 9 = 13 12

24、 -( )= 6 14 -( )= 6 8 +( )= 12 ( )- 5 = 618 -( )= 9 ( )- 8 = 7 ( )+ 9 = 12 ( )- 8 = 3 4 +( )= 12( )+ 5 = 12 ( )+ 8 = 14 6 +( )= 15 3 +( )= 11 ( )- 8 = 611 -( )= 9 2 +( )= 11 ( )- 4 = 9 ( )- 7 = 8 17 -( )= 149 +( )= 18 ( )- 5 = 6 16 -( )= 9 ( )+ 9 = 17 12 -( )= 99 + 4 - 8 = 17 - 5 + 2 = 7 + 5 - 9 = 1

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

26、6 + 1 = 3 + 5 + 6 = 13 - 4 - 9 =19 - 2 = 8 + 7 = 17 - 9 = 9 + 7 = 12 - 3 =18 - 9 = 19 - 3 = 5 + 6 = 16 - 3 = 4 + 14 =7 + 9 = 3 + 8 = 15 - 8 = 16 - 9 = 8 + 8 =7 + 8 = 17 - 8 = 9 + 9 = 6 + 8 = 18 - 4 =第 5 页,共 11 页15 - 9 = 8 + 6 = 17 - 3 = 12 - 8 = 3 + 8 =6 + 7 = 4 + 9 = 12 - 6 = 6 + 9 = 14 - 7 =2 + 9

27、= 16 - 7 = 11 - 9 = 7 + 7 = 5 + 8 =13 - 8 = 8 + 9 = 6 + 6 = 12 - 7 = 16 - 8 =8 + 8 = 12 - 9 = 18 - 2 = 4 + 8 = 13 - 5 =5 + 7 = 11 - 7 = 3 + 9 = 16 - 8 = 4 + 7 =14 - 9 = 19 - 4 = 7 + 6 = 9 + 8 = 7 + 9 =4 + 7 = 5 + 9 = 11 - 8 = 5 + 8 = 11 - 3 =11 - 2 = 14 - 8 = 8 + 5 = 13 - 9 = 12 - 6 =( )+ 5 = 12 18

28、-( )= 16 ( )- 8 = 8 ( )+ 9 = 14 9 +( )= 14( )- 7 = 6 ( )- 3 = 9 3 +( )= 12 11 -( )= 7 ( )- 4 = 104 +( )= 13 7 +( )= 17 ( )- 2 = 14 ( )+ 10 = 19 13 -( )= 7( )- 8 = 3 ( )+ 8 = 11 ( )- 9 = 9 16 -( )= 7 ( )- 9 = 718 -( )= 14 ( )+ 13 = 15 11 -( )= 3 ( )+ 9 = 11 7 +( )= 16( )+ 8 = 12 12 -( )= 5 6 +( )= 19

29、 8 +( )= 18 ( )+ 3 = 118 + 5 - 3 = 12 - 4 - 2 = 13 + 4 - 7 = 14 - 7 + 5 = 9 + 6 - 2 =17 - 6 - 6 = 5 + 7 + 5 = 18 - 7 - 9 = 8 + 6 + 4 = 13 - 5 - 6 =6 + 5 - 2 = 11 - 2 + 3 = 14 + 3 - 8 = 15 - 7 + 2 = 18 - 9 - 7 =16 - 5 - 3 = 9 + 4 - 4 = 13 - 3 - 4 = 14 + 3 - 6 = 7 + 3 + 9 =10 + 2 + 6 = 18 - 7 + 4 = 7

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

31、 3 =4 + 7 = 6 + 6 = 16 - 7 = 2 + 16 = 13 - 8 =16 - 8 = 15 - 7 = 13 - 4 = 7 + 5 = 8 + 4 =3 + 8 = 11 - 5 = 6 + 7 = 11 - 3 = 14 - 7 =17 - 9 = 12 - 8 = 9 + 9 = 5 + 14 = 7 + 5 =6 + 8 = 5 + 7 = 15 - 6 = 12 - 5 = 6 + 9 =13 - 6 = 11 - 8 = 14 - 7 = 8 + 6 = 12 - 8 =8 + 4 = 14 - 6 = 7 + 8 = 11 - 2 = 7 + 8 =11

32、- 7 = 7 + 7 = 16 - 9 = 5 + 6 = 17 - 2 =( )+ 13 = 18 9 +( )= 19 ( )- 9 = 7 ( )+ 9 = 13 ( )+ 7 = 14( )- 4 = 13 ( )+ 12 = 17 2 +( )= 11 16 -( )= 8 12 -( )= 64 +( )= 11 18 -( )= 12 ( )- 8 = 4 12 -( )= 7 ( )+ 7 = 1515 -( )= 8 ( )+ 9 = 12 19 -( )= 16 ( )+ 11 = 19 ( )- 5 = 9( )- 5 = 9 16 -( )= 9 6 +( )= 18

33、 3 +( )= 11 ( )+ 8 = 16第 6 页,共 11 页7 +( )= 19 ( )- 8 = 9 ( )+ 4 = 12 ( )- 4 = 8 ( )- 8 = 33 + 9 + 3 = 5 + 8 - 6 = 16 - 9 + 1 = 3 + 8 - 9 = 7 + 4 - 8 =15 - 2 - 5 = 11 - 9 + 5 = 2 + 9 + 4 = 17 - 9 + 2 = 11 - 4 - 6 =11 + 2 - 5 = 12 + 2 - 3 = 18 - 9 - 7 = 5 + 9 + 2 = 8 + 9 - 5 =18 - 2 - 3 = 18 - 9 - 8 =

34、 4 + 9 + 5 = 14 - 3 - 9 = 12 - 5 - 7 =12 - 9 + 3 = 6 + 8 - 8 = 17 - 8 - 4 = 4 + 9 - 7 = 3 + 8 + 8 =4 + 9 + 1 = 16 - 8 - 6 = 9 + 8 - 4 = 11 - 9 + 4 = 11 - 9 =11 - 9 = 6 + 8 = 13 - 5 = 11 - 3 = 5 + 8 =13 - 6 = 12 - 7 = 3 + 8 = 14 - 8 = 15 - 6 =6 + 6 = 17 - 8 = 11 - 6 = 6 + 7 = 3 + 8 =14 - 9 = 8 + 8 =

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

36、3 = 2 + 17 = 3 + 9 =4 + 14 = 11 - 8 = 18 - 3 = 15 - 7 = 17 - 8 =12 - 5 = 17 - 7 = 14 - 7 = 12 - 8 = 11 - 4 =8 +( )= 18 18 -( )= 9 ( )+ 9 = 14 ( )+ 13 = 17 16 -( )= 1418 -( )= 15 3 +( )= 11 ( )- 4 = 9 7 +( )= 19 ( )- 7 = 812 -( )= 4 ( )- 3 = 14 11 -( )= 9 ( )+ 9 = 12 19 -( )= 13( )+ 10 = 19 13 -( )=

37、9 ( )+ 12 = 16 5 +( )= 19 6 +( )= 1516 -( )= 14 ( )- 5 = 7 4 +( )= 13 15 -( )= 9 ( )- 8 = 62 +( )= 11 16 -( )= 8 ( )- 6 = 9 9 +( )= 18 9 +( )= 1212 - 4 + 4 = 13 + 2 - 4 = 6 + 6 - 3 = 15 - 3 + 5 = 9 + 3 - 4 =18 - 6 + 3 = 7 + 5 - 8 = 19 - 4 - 7 = 8 + 3 + 5 = 19 - 8 - 9 =5 + 7 - 7 = 19 - 2 - 4 = 13 + 5

38、 - 5 = 18 - 6 + 1 = 17 - 9 - 2 =19 - 7 - 8 = 4 + 3 + 6 = 18 - 7 - 3 = 6 + 7 + 1 = 16 - 5 - 9 =8 + 8 - 9 = 12 - 3 + 6 = 10 + 4 + 4 = 19 - 6 - 2 = 5 + 7 - 8 =4 + 5 - 6 = 9 + 3 + 2 = 11 - 2 + 2 = 11 + 2 + 3 = 18 - 9 =6 + 6 = 11 - 6 = 3 + 8 = 16 - 7 = 7 + 5 =9 + 8 = 14 - 5 = 17 - 8 = 3 + 7 = 13 - 8 =4 +

39、 2 = 12 - 4 = 8 + 8 = 11 - 7 = 9 + 6 =8 - 3 = 11 - 8 = 18 - 9 = 14 + 3 = 11 - 7 =11 - 5 = 5 + 5 = 6 + 7 = 9 + 9 = 5 + 7 =6 + 13 = 17 - 9 = 12 - 6 = 10 - 5 = 12 - 9 =12 - 3 = 4 + 8 = 11 - 3 = 4 + 4 = 7 + 8 =第 7 页,共 11 页7 + 7 = 3 + 13 = 7 - 3 = 11 - 9 = 3 + 8 =6 + 8 = 13 - 4 = 3 + 6 = 5 + 7 = 14 - 7 =

40、12 - 7 = 17 - 2 = 2 + 8 = 13 - 5 = 12 - 8 =8 + 7 = 19 - 5 = 16 - 9 = 11 - 4 = 5 + 9 =11 - 2 = 5 + 6 = 12 - 5 = 5 + 8 = 15 - 9 =4 + 6 = 10 - 3 = 4 + 7 = 3 + 15 = ( )+ 9 = 175 +( )= 14 ( )- 9 = 9 16 -( )= 9 ( )+ 9 = 13 2 +( )= 16( )- 3 = 12 17 -( )= 15 ( )+ 10 = 19 ( )- 8 = 3 ( )- 3 = 13( )- 3 = 13 2

41、+( )= 11 15 -( )= 9 8 +( )= 19 ( )+ 7 = 12( )- 7 = 5 ( )+ 9 = 18 2 +( )= 15 ( )+ 8 = 11 15 -( )= 63 +( )= 12 13 -( )= 7 ( )- 9 = 3 ( )+ 14 = 17 ( )+ 8 = 13( )- 6 = 5 ( )+ 12 = 18 7 +( )= 19 11 -( )= 8 5 + 6 - 8 =3 + 4 + 4 = 15 - 4 - 8 = 16 - 8 - 7 = 9 + 3 + 3 = 11 - 5 - 3 =13 - 2 - 2 = 10 + 2 + 2 =

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

43、 + 7 + 9 = 6 + 8 = 11 - 4 - 4 =6 + 9 = 13 - 7 = 3 + 16 = 16 - 8 = 17 - 9 - 5 =7 + 6 = 6 + 8 = 8 + 3 = 12 - 8 = 7 + 7 - 5 =15 - 8 = ( )+ 9 = 13 16 - 8 = 2 + 9 = 15 - 9 - 6 =9 + 9 = 2 +( )= 19 7 + 6 = ( )+ 6 = 13 9 + 4 - 6 =4 + 8 = ( )- 9 = 8 11 - 4 = ( )- 9 = 5 12 - 4 =14 - 7 = 8 +( )= 18 17 - 9 = 8

44、+( )= 17 6 + 9 =8 + 6 = ( )- 6 = 9 9 + 3 = ( )+ 7 = 16 17 - 4 =11 - 6 = 5 +( )= 14 13 - 5 = 12 -( )= 8 7 + 8 =9 + 7 = 7 + 7 - 6 = 15 - 7 = ( )- 8 = 7 5 + 6 =14 - 6 = 13 - 6 + 8 = 8 + 6 = 18 - 9 + 8 = 16 - 7 =5 + 8 = 15 - 6 - 2 = 6 + 13 = 8 + 4 - 5 = 18 - 5 =11 - 9 = 9 + 5 - 5 = 12 - 5 = 16 - 7 - 3 =

45、 6 + 8 =17 -( )= 9 3 + 6 + 8 = 9 + 7 = 9 + 5 - 9 = 13 - 4 =9 +( )= 19 17 - 3 - 9 = ( )- 8 = 8 11 - 6 - 4 = 4 + 8 =( )+ 9 = 11 9 + 2 = ( )+ 8 = 11 18 - 9 - 5 = 17 - 8 =16 -( )= 7 17 - 4 = 17 -( )= 8 11 - 6 = 12 - 5 =( )+ 14 = 16 8 + 8 = 8 +( )= 15 6 + 8 = 5 + 9 =3 +( )= 19 12 - 5 = ( )- 8 = 5 13 - 8

46、= 8 +( )= 1213 + 4 + 2 = 17 - 3 = 15 -( )= 8 8 + 9 = ( )+ 9 = 1318 - 4 + 2 = 5 + 9 = 9 + 5 - 3 = 14 - 8 = 10 -( )= 4第 8 页,共 11 页11 + 4 - 9 = 13 - 5 = 12 - 4 - 2 = 6 + 6 = ( )- 7 = 67 + 4 - 7 = 16 - 7 = 6 + 3 + 8 = 3 + 9 = 4 +( )= 119 + 7 - 5 = 8 + 3 = 15 - 8 - 3 = 15 - 7 = ( )+ 2 = 1117 - 3 - 8 = 7

47、+ 4 = 7 + 7 - 7 = 13 - 6 = 14 - 7 - 2 =3 + 8 = 14 - 5 = 14 - 5 - 4 = 9 + 6 = 6 + 4 - 3 =17 - 9 = 6 + 5 = 6 + 7 = 12 - 4 = 13 - 9 + 7 =4 + 7 = 11 - 3 = 19 - 8 = 4 + 7 = 9 + 9 - 8 =13 - 5 = 4 +( )= 11 4 + 8 = 6 + 9 = 17 - 6 - 2 =6 + 6 = ( )- 7 = 9 12 - 9 = ( )+ 8 = 14 2 + 9 + 8 =11 - 7 = 18 -( )= 9 4 + 12 = 16 -( )= 7 7 + 9 =5 + 7 = ( )+ 12 = 19 6 + 9 = ( )- 8 = 4 17 - 8 =16 - 8 = 7 +( )= 19 5 + 7 = 3 +( )= 11 7 + 6 =5 + 9 = 16 -( )= 7 2 + 16 = ( )+ 9 = 18 12 - 6 =18 - 4 = 15 - 7 + 8 = 17 - 9 = ( )- 7 = 8 19 - 5

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