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Subtraction by 1
AB
2 - 1 =1
3 - 1 =2
4 - 1 =3
5 - 1 =4
6 - 1 =5
7 - 1 =6
8 - 1 =7
9 - 1 =8
10 - 1 =9


Mark Ayers
Albuquqerque, NM

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