Subtraction (9)

Front 1

14-9

Back 1

5

Front 2

18-9

Back 2

9

Front 3

15-9

Back 3

6

Front 4

17-9

Back 4

8

Front 5

16-9

Back 5

7

Front 6

9-0

Back 6

9

Front 7

12-9

Back 7

3

Front 8

13-9

Back 8

4

Front 9

11-9

Back 9

2

Front 10

10-9

Back 10

1

Front 11

9-9

Back 11

0

Front 12

9-8

Back 12

1

Front 13

9-7

Back 13

2

Front 14

9-3

Back 14

6

Front 15

9-4

Back 15

5

Front 16

9-6

Back 16

3

Front 17

9-5

Back 17

4

Front 18

9-1

Back 18

8

Front 19

9-2

Back 19

7