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pencil Addition 1-Digit

8+5=1+9=10+7=
9+1=5+5=0+9=
2+5=7+10=9+0=
1+7=0+0=8+3=
8+3=4+5=10+0=
5+8=0+5=2+3=
6+6=7+1=6+4=
8+1=1+7=6+3=
5+0=3+6=1+6=
5+3=8+9=0+1=