Plus/Minus 1
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2-1=
1
11-1=
10
1+10= 10+1=
11
1+1=
2
3-1=
2
1+2= 2+1=
3
4-1=
3
1+3= 3+1=
4
5-1=
4
1+4= 4+1=
5
6-1=
5
1+5= 5+1=
6
7-1=
6
1+6= 6+1=
7
8-1=
7
1+7= 7+1=
8
9-1=
8
1+8= 8+1=
9
10-1=
9
2-1=
1
11-1=
10
1+10= 10+1=
11
1+1=
2
3-1=
2
1+2= 2+1=
3
4-1=
3
1+3= 3+1=
4
5-1=
4
1+4= 4+1=
5
6-1=
5
1+5= 5+1=
6
7-1=
6
1+6= 6+1=
7
8-1=
7
1+7= 7+1=
8
9-1=
8
1+8= 8+1=
9
10-1=
9
