DODAWANIE do 20

1+1=2, 2+1=3, 3+1=4, 4+1=5, 5+1=6,

1+2=3, 2+2=4, 3+2=5, 4+2=6, 5+2=7,

1+3=4, 2+3=5, 3+3=6, 4+3=7, 5+3=8,

1+4=5, 2+4=6, 3+4=7, 4+4=8, 5+4=9,

1+5=6, 2+5=7, 3+5=8, 4+5=9, 5+5=10,

1+6=7, 2+6=8, 3+6=9, 4+6=10, 5+6=11,

1+7=8, 2+7=9, 3+7=10, 4+7=11, 5+7=12,

1+8=9, 2+8=10, 3+8=11, 4+8=12, 5+8=13,

1+9=10, 2+9=11, 3+9=12, 4+9=13, 5+9=14,

1+10=11,2+10=12,3+10=13,4+10=14,5+10=15.

6+1=7, 7+1=8, 8+1=9, 9+1=10, 10+1=11,

6+2=8, 7+2=9, 8+2=10, 9+2=11, 10+2=12,

6+3=9, 7+3=10, 8+3=11, 9+3=12, 10+3=13,

6+4=10, 7+4=11, 8+4=12, 9+4=13, 10+4=14,

6+5=11, 7+5=12, 8+5=13, 9+5=14, 10+5=15,

6+6=12, 7+6=13, 8+6=14, 9+6=15, 10+6=16,

6+7=13, 7+7=14, 8+7=15, 9+7=16, 10+7=17,

6+8=14, 7+8=15, 8+8=16, 9+8=17, 10+8=18,

6+9=15, 7+9=16, 8+9=17, 9+9=18, 10+9=19,

6+10=16,7+10=17,8+10=18,9+10=19,10+10=20