1桁の足し算と引き算虫食い
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1 - 1 = 0 4 - 1 = 3
5 - 1 = 4 6 + 5 = 11
5 - 1 = 4 9 - 2 = 7
6 + 0 = 6 9 - 0 = 9
2 + 6 = 8 2 - 1 = 1
6 + 7 = 13 8 + 3 = 11
6 - 5 = 1 7 + 8 = 15
8 - 8 = 0 6 + 3 = 9
6 + 5 = 11 5 - 2 = 3
4 + 7 = 11 6 - 2 = 4
9 + 8 = 17 1 - 0 = 1
1 - 0 = 1 4 + 6 = 10
8 - 1 = 7 3 + 5 = 8
9 - 4 = 5 1 - 0 = 1
6 - 1 = 5 3 + 9 = 12
2 - 0 = 2 6 - 3 = 3
9 + 8 = 17 6 + 9 = 15
8 - 0 = 8 5 - 1 = 4
8 - 2 = 6 2 + 3 = 5
1 - 1 = 0 2 - 1 = 1
7 + 7 = 14 9 - 8 = 1
8 + 7 = 15 8 - 1 = 7
3 + 2 = 5 5 + 8 = 13
6 + 3 = 9 1 + 1 = 2
9 - 1 = 8 3 + 5 = 8
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