19+1=

(a)  

18+2=

(a)  

17+3=

(a)  

16+4=

(a)  

15+5=

(a)  

14+6=

(a)  

13+7=

(a)  

12+8=

(a)  

11+9=

(a)  

10+10=

(a)  

19+0=

(a)  

18+1=

(a)  

17+2=

(a)  

16+3=

(a)  

15+4=

(a)  

14+5=

(a)  

13+6=

(a)  

12+7=

(a)  

11+8=

(a)  

10+9=

(a)  

18+0=

(a)  

17+1=

(a)  

16+2=

(a)  

15+3=

(a)  

14+4=

(a)  

13+5=

(a)  

12+6=

(a)  

11+7=

(a)  

10+8=

(a)  

17+0=

(a)  

16+1=

(a)  

15+2=

(a)  

14+3=

(a)  

13+4=

(a)  

12+5=

(a)  

11+6=

(a)  

10+7=

(a)  

10+6=

(a)  

11+5=

(a)  

12+4=

(a)  

13+3=

(a)  

14+2=

(a)  

15+1=

(a)  

16+0=

(a)  

15+0=

(a)  

14+1=

(a)  

13+2=

(a)  

12+3=

(a)  

11+4=

(a)  

10+5=

(a)  

14+0=

(a)  

13+1=

(a)  

12+2=

(a)  

11+3=

(a)  

10+4=

(a)  

13+0=

(a)  

12+1=

(a)  

11+2=

(a)  

10+3=

(a)  

12+0=

(a)  

11+1=

(a)  

10+2=

(a)  

11+0=

(a)  

10+1=

(a)  

10+0=

(a)  

9+9=

(a)  

9+8=

(a)  

9+7=

(a)  

9+6=

(a)  

9+5=

(a)  

9+4=

(a)  

9+3=

(a)  

9+2=

(a)  

9+1=

(a)  

8+8=

(a)  

8+7=

(a)  

8+6=

(a)  

8+5=

(a)  

8+4=

(a)  

8+3=

(a)  

8+2=

(a)  

8+1=

(a)  

7+7=

(a)  

7+6=

(a)  

7+5=

(a)  

7+4=

(a)  

7+3=

(a)  

7+2=

(a)  

7+1=

(a)  

6+6=

(a)  

6+5=

(a)  

6+4=

(a)  

6+3=

(a)  

6+2=

(a)  

6+1=

(a)  

5+5=

(a)  

5+4=

(a)  

5+3=

(a)  

5+2=

(a)  

5+1-

(a)  

4+4=

(a)  

4+3=

(a)  

4+2=

(a)  

4+1=

(a)  

3+3=

(a)  

3+2=

(a)  

3+1=

(a)  

2+2=

(a)  

2+1=

(a)  

2+0=

(a)  

1+1=

(a)